Announcement

**yuuyuu321** · 4 Feb 2016, 05:10:33

970 กับ 780ti แรงพอๆกัน
970SLI แรงกว่าครับ

**TWK.** · 4 Feb 2016, 08:10:25

GTX 970 SLI

**MajiNPic** · 4 Feb 2016, 08:29:10

GTX970 SLI แรงกว่าพอสมควรครับ

**AKK_K** · 4 Feb 2016, 08:32:43

ไม่มีคำตอบชัดเจน แล้วแต่เกม

ใช้ SLI อยู่แล้วน่าจะรู้ว่าไม่เหมาะที่จะซื้อการ์ด มา SLI ในครั้งเดียวกัน
(ยกเว้นการ์ดตัว TOP สุดมา SLI เพราะไม่มีการ์ดใบเดียวแรงกว่านี้)
SLI อาจจะดี ถ้ามีการ์ด1 ใบ แล้วมา SLI ภายหลัง

อย่าง batman arkham knight จนถึงตอนนี้ ก็ไม่ Support SLI
เกมออกใหม่บางตัว อาจจะรองรับ SLI แต่ก็ต้องรอ

และจะลงทุนขนาดนี้ รอ Pascal เถอะ

**Kok@OCZ** · 4 Feb 2016, 08:33:55

ยิ่งถ้า GTX 970 SLI OC เพิ่มด้วย

Performance จะประมาณ GTX 980 Ref SLI ดีๆนี่เอง

โหดขิงๆเลยละ

**AKK_K** · 4 Feb 2016, 08:46:36

GTX 970 SLI vs. Single 980 Ti ? Is SLI Worth It?

By Steve Burke Published January 01, 2016 at 5:30 pm

ดูให้ละเอียด โดยเฉพาะค่า Min Frame Rate

GTX 970 SLI vs. Single 980 Ti – Is SLI Worth It? | GamersNexus

http://www.gamersnexus.net/guides/2246-gtx-970-sli-vs-gtx-980-ti

stub Scalable multi-card configurations from both nVidia and AMD have improved in their performance over the years, with both companies investing additional resources to driver optimizations for multi-card users. The value of SLI or CrossFire has always been debatable, particularly for day-one system builders (rather than someone upgrading), but is worth investigating further. With all the year's newest titles – and some mainstays with well-tested performance – we did that investigation, specifically comparing a single 980 Ti vs. 2x 970s in SLI, a 980, single 970, and R9 390X for AMD baseline. Today's GTX 970 SLI vs. single 980 Ti test benchmarks average FPS and 1% / 0.1% low performance, presenting data in a few different chart types: Usual AVG, 1% low, & 0.1% low head-to-head performance; delta value (percent advantage) between the 970s in SLI and 980 Ti; delta value (percent gain) between the 2x 970s and a single GTX 970. GTX 970 & GTX 980 Ti Specs GTX 980 Ti Hybrid GTX 970 SSC GPU GM200 GM204 Fab Process 28nm 28nm Texture Filter Rate (Bilinear) 176GT/s 109GT/s TjMax 92C 98C Transistor Count 8B 5.2B ROPs 96 56 TMUs 176GT/s 104 CUDA Cores 2816 1664 Base Clock (GPU) 1140MHz 1140MHz Boost Clock (GPU) 1228MHz 1342MHz GDDR5 Memory / Memory Interface 6GB / 384-bit 4GB / 256-bit Memory Bandwidth (GPU) 336.5GB/s 224GB/s Mem Speed 7Gbps 7Gbps Power 1x 8-pin1x 6-pin 1x 8-pin1x 6-pin TDP 250W 145W Output 3x DisplayPort1x HDMI 2.01x DL-DVI 3x DisplayPort1x HDMI 2.01x DL-DVI Price as of Post $730.00 $330.00 Our test looks at these cards specifically: EVGA GTX 970 SSC 4GB, 1190MHz ($330) EVGA GTX 970 SSC + GTX 970 Hybrid 1140MHz EVGA GTX 980 Ti Hybrid 6GB ($730) MSI GTX 980 Gaming 4GB 1190MHz ($516) MSI R9 390X Gaming 8GB 1100MHz The “Hybrid” cards drive price up a little higher than the average for a 970 SLI or 980 Ti single card setup. For this test, we're assuming a baseline price of $650 - $660 for a single 980 Ti (MSRP is $650, which is where most non-liquid cards fall). We're also assuming a joint price of ~$660 - $700 for two GTX 970s (non-liquid), which puts them effectively at a head-to-head price bracket. That makes the value comparison clean and easy, no waffling between price. Considerations of SLI There are two primary scenarios where SLI or CrossFire are used: A later upgrade when half the configuration is already owned and a day-one, brand new build. In the event of the first scenario – where the user already owns one GTX 970 and is considering a second – the value considerations are different and will be discussed only in the conclusion. Also in that scenario, we'd always recommend buying that second card (if truly desired) before it exits production. Almost every time a card exits official production, prices spike on retailers and second-hand markets. It's almost always better to buy a newer, single card once that happens, as the spiked prices are hardly sane or good value. SLI and CrossFire are also historically prone to micro-stuttering as a result of their dual-processing technique (normally AFR, or alternate frame rendering). GPUs render alternating frames when using the AFR technique; more explicitly, GPU A will render all odd frames (1, 3, 5, 7) while GPU B renders all even frames (0, 2, 4, 6). Micro-stutter can be so extreme in some games and driver sets that SLI becomes undesirable, even if average FPS is improved over single-card configurations. In these situations, disabling one of the two GPUs (but leaving the GPU physically installed) will reduce or eliminate micro-stutter, but then you're only getting half the investment outputting – certainly an unwanted situation. Micro-sutter is observable as a result of disparate frame-time gaps, where the time between frame renders is inconsistent enough that the user can perceive a jarring difference – e.g. jumping from a 16ms render to a 30ms or 40ms render time (or worse). Adaptive synchronization technologies have helped to mitigate this phenomenon. Monitors supporting G-Sync and FreeSync are of particular importance for consideration when running SLI or CrossFire. The GPU connected to the display manages the sync technology. NVidia SLI setups fully support G-Sync. AMD CrossFire setups, as of driver version 15.7 from July 2015, also fully support FreeSync. Another performance consideration for multi-GPU cards – in a similar vein to micro-stutter – 1% and 0.1% low frame performance can sometimes be worse than single-card setups. This is another point that could potentially favor a single, higher-end GPU, but recent optimizations made to drivers and games may reduce the impact to manageable territory – we'll look at that below. No overclocking was applied during these tests, which does mean that the slower of the two cards (the 970 Hybrid, at 1140MHz) will marginally impact the overall performance. SLI overclocking is being done in one of our next tests and has been reserved for that content. We've already tested this 1140MHz vs. 1190MHz differential over here, if you're curious about what kind of delta that produces. We mostly saw differences centered around the 1.87% to 2.5% area. Test Methodology We tested using our 2015 multi-GPU test bench. Our thanks to supporting hardware vendors for supplying some of the test components. The latest AMD drivers (15.12) were used for testing. NVidia's 361.43 drivers were used for testing the latest games. Game settings were manually controlled for the DUT. All games were run at presets defined in their respective charts. We disable brand-supported technologies in games, like The Witcher 3's HairWorks and HBAO. All other game settings are defined in respective game benchmarks, which we publish separately from GPU reviews. Our test courses, in the event manual testing is executed, are also uploaded within that content. This allows others to replicate our results by studying our bench courses. Each game was tested for 30 seconds in an identical scenario, then repeated three times for parity. The results in the tables are averages of these three runs. GN Test Bench 2015 Name Courtesy Of Cost Video Card This is what we're testing! - - CPU Intel i7-5930K CPU iBUYPOWER $580 Memory Kingston 16GB DDR4 Predator Kingston Tech. $245 Motherboard EVGA X99 Classified GamersNexus $365 Power Supply NZXT 1200W HALE90 V2 NZXT $300 SSD HyperX Savage SSD Kingston Tech. $130 Case Top Deck Tech Station GamersNexus $250 CPU Cooler NZXT Kraken X41 CLC NZXT $110 Average FPS, 1% low, and 0.1% low times are measured. We do not measure maximum or minimum FPS results as we consider these numbers to be pure outliers. Instead, we take an average of the lowest 1% of results (1% low) to show real-world, noticeable dips; we then take an average of the lowest 0.1% of results for severe spikes. Battlefront test methodology can be found here. Black Ops III test methodology is here. The Witcher 3 test methodology is here. Fallout 4 test methodology is here. Assassin's Creed Syndicate methodology is here. Fallout 4 Benchmark – 970 SLI vs. 980 Ti, 970, 980, & 390X Fallout 4 produced some of the most disappointing performance results of the year when initially tested. Support for the game and optimizations have been made in some small capacity, but it's still easily one of the most confusingly demanding titles on the current market. At 1080p, the 980 Ti pushes 86.3 FPS against the SLI 970 configuration's 81.7FPS, granting the single 980 Ti card a 5.48% lead. 1% and 0.1% lows are disproportionately worse to the single 980 Ti setup, but not to the level that would make SLI 'unplayable' or force the disabling of SLI. Both configurations are well within playable territory, especially considering Fallout 4's physics-FPS binding that demands a 60FPS lock. Scaling for the dual-card setup produces a 31.12% performance gain over one GTX 970. In this instance, a single GTX 980 Ti ($600) is the 'winner' in direct head-to-head. The 390X, for reference, now performs slightly better than the GTX 970 single card, whereas initial launch had the GTX 970 ahead of the R9 390X. Assassin's Creed Syndicate Benchmark – 970 SLI vs. 980 Ti, 970, 980, 390X AC Syndicate once showed effectively zero SLI scaling in our tests, but has improved dramatically since original testing. In today's test, we see the 980 Ti favored by a somewhat large 17.23% over the SLI GTX 970s. That's 71.7 AVG FPS vs. 66 AVG FPS, but there's more to the story than just averages: The SLI GTX 970 setup suffered from massive reductions in 1% and 0.1% lows; worse even than the single GTX 970. We saw severe micro-stutter in Assassin's Creed Syndicate that showed a halving of the average framerate at its worst times. This coupled with the 17.23% lead makes the GTX 980 Ti a clear and definitive winner. Even the GTX 980, which outputs about 10FPS (15.16%) slower gameplay has significantly more fluid performance than the dual 970 setup, and would be a worthy consideration. Looking only at scaling, the GTX 970 dual-card group produces a 33.63% performance gain over a single GTX 970. Considering day-one performance for SLI was nearly identical to running just one card of the config, that's not a bad driver improvement. In this one, our AMD anchor 390X performs marginally worse than the GTX 970 in ACS at 1440p. Metro: Last Light Benchmark – 970 SLI vs. 980 Ti, 970, 980, 390X Metro: Last Light shows a 4.78% performance lead for the GTX 980 Ti at 1080p, now marking three points in favor of the 980 Ti. Interestingly, a resolution jump to 1440p produces effectively identical performance (AVG FPS) between the two setups, with the 980 Ti leading by way of 1% and 0.1% lows (but only by a few points, to the degree that an end user wouldn't be able to differentiate performance). At 4K, the 980 Ti retains a 1.76% lead and outputs observably identical lows to the 970s in SLI. This is our first scaling measurement with all three major resolutions covered. There's a clear progression from 1080p to 4K in performance gains, resultant of additional pixel processing power generated from running two GPUs. At 1080p, 2x 970s scale 26.26% over a single 970 (sub-optimal, for sure); that scaling changes to 38.93% at 1440p and 43.20% at 4K. Shadow of Mordor Benchmark – 970 SLI vs. 980 Ti, 970, 980, 390X Shadow of Mordor finally shows a performance lead for the two GTX 970s, which run a marginal 1.87% better than the single GTX 980 Ti – not necessarily “worth it” considering the previous wins for the single card, but this may be a turning point for the dual-card setup. We'll re-evaluate once all results are in. At 1440p, a 6.14% lead emerges for the 2x 970s, though the 980 Ti retains better 0.1% lows (outside of observable impact to the end-user, granted). 4K shows a 9.88% lead – more linear scaling for the dual processors. Two GTX 970s are the objective winner here, though the margin is small enough that value remains suspect until further testing – below – is evaluated. As for SLI scaling versus a single card, it looks something like this: 46.14% gain at 1080p; 50.69% gain at 1440p; 55.04% gain at 4K. The 390X outperforms the single GTX 970 and GTX 980 (marginally) at 1080p in Mordor and maintains its distance at 1440 and 4K. COD: Black Ops III Benchmark – 970 SLI vs. 980 Ti, 970, 980, 390X Call of Duty: Black Ops III has remained one of the best-performing titles relative to its 'looks' that we've worked with this year. See our graphics optimization guide for the game over here. This is the title that most closely puts us in operable range for 144Hz displays. At 1440p, there's a definitive lead for the dual GTX 970s – that marks two points for SLI, three points for single-card – at 17.23% > 980 Ti. Raw numbers at this resolution are 138.7FPS AVG vs. 116.7FPS AVG, with lows scaling fairly well but 0.1% lows favoring the 980 Ti (nominally). 4K shows a 10.14% lead, so performance heads south, unlike our previous scalability results. As for a single card versus two cards, the dual-card setup presents a massive 56% average FPS gain at 1440 and 57.89% gain at 4K. 1% and 0.1% lows aren't very good for the SLI setup when looked at relative to the 980 Ti (AVG vs. low gap is larger), but still well within the playable range. 0.1% lows on 4K are dismal and render the game unplayable at a competitive level. The Witcher 3 Benchmark – 970 SLI vs. 980 Ti, 970, 980, 390X Note: There was an averaging error (spreadsheet formula pointed at the wrong cell for one of our lineups) in the 4K Witcher 3 test when the video was rendered. That error has been resolved in the above chart. The original chart showed 23FPS for the GTX 980 (AVG) and 24FPS for the GTX 970 (AVG), but the correct numbers are 25FPS (980) and 24FPS (970). Thanks to the viewer who spotted this! The Witcher 3 produces the biggest advantage for SLI, with the 2x 970s running 30.07% faster than the GTX 980 Ti at 1440p. That and the general low FPS improvement over the 980 Ti makes The Witcher 3 significantly more playable on the 2x 970s at this resolution. 4K is pretty rough across the board, but the dual cards do retain a technical lead (19.7%), despite neither configuration being what we'd consider 'playable' at Ultra. The Witcher 3 also produces solid scaling numbers for SLI. There's a 50% performance gain over a single card at 1440p, or 47.62% at 4K. GTA V Benchmark – 970 SLI vs. 980 Ti, 970, 980, 390X We're now at four points for SLI GTX 970s and three points for a single GTX 980 Ti, looking firmly at the head-to-head in average FPS metrics. There's obviously a lot more in the details, all written in the above test notes. GTA V shows a slight lead for the 970s in SLI at 11.53% over the GTX 980 Ti (1080p), 18.51% at 1440p, and 18.06% at 4K. 4K 1% and 0.1% low performance is awful for the SLI configuration, rendering it effectively unplayable even with its 50.7 AVG FPS. Scaling puts SLI at 38.4% > single 970 at 1080p, 51.66% at 1440p, and 60% at 4K. Just Cause 3 Benchmark – SLI 970 vs. 980 Ti, 980, 970, 390X Just Cause 3 is another test title where we saw effectively no SLI scaling at launch, and that hasn't changed much. The 980 Ti is the winner by a staggering 26.89% at 1080p and 38.69% at 1440p. SLI is terrible value for Just Cause 3. Scaling from a single card stands at just 10.82% at 1080p. In fact, it's so bad that you'd be better off buying a single GTX 980 non-Ti than SLI 970s (or 390X, even). SLI 970 Scaling vs. Single GTX 970 This was already discussed in all the above sections, but here's a table strictly showing SLI performance scaling from one card to two: GTX 970 SLI Scaling vs. Single Card 1080p 1440p 4K MLL 26.26% 38.93% 43.20% FO4 31.12% Mordor 46.14% 50.69% 55.04% W3 50% 47.62% BLOPS3 56% 57.89% ACS 33.63% JC3 10.82% 8.11% GTA 38.40% 51.66% 60% Conclusion: Is SLI Worth it for the GTX 970? The value of SLI depends on the situation. Assuming a completely new system build, the only time SLI 970s holds a considerable lead over the single 980 Ti is in The Witcher 3 and Black Ops 3 (at 1440). For every other title, either the 980 Ti leads (MLL, FO4, ACS, JC3) or the 2x970 lead is so small that it isn't worth the issues with other current and future releases. Micro-stutter remains a concern in some games, but isn't nearly as bad as it has been in the past. For these reasons, we'd generally feel most comfortable recommending a single GTX 980 Ti over the dual-GTX 970 setup (AMD also has offerings, of course, but we're keeping this content strictly focused on the original question; we also don't have the Fury X). If already in possession of one GTX 970, an upgrade isn't nearly as bad of a value – that's a ~$330 spend to scale performance upwards of 60% in some games, or an average of 30.54% across 1080p tests (five titles). SLI scaling as a whole has improved tremendously over the years, and much more reliably becomes a viable solution as a game's optimization matures. That doesn't necessarily make it a better option than a single card for a new build, but does mean SLI is a less headache-inducing upgrade pathway than it once was. Still not perfectly reliable – ACS was useless with SLI at launch, Just Cause 3 still is – but better. - Steve “Lelldorianx” Burke.

The value of SLI depends on the situation. Assuming a completely new system build,
the only time SLI 970s holds a considerable lead over the single 980 Ti is in The Witcher 3 and Black Ops 3 (at 1440).
For every other title, either the 980 Ti leads (MLL, FO4, ACS, JC3) or the 2x970 lead is so small
that it isn't worth the issues with other current and future releases.
Micro-stutter remains a concern in some games, but isn't nearly as bad as it has been in the past.
For these reasons,we'd generally feel most comfortable recommending a single GTX 980 Ti over the dual-GTX 970 setup
(AMD also has offerings, of course, but we're keeping this content strictly focused on the original question; we also don't have the Fury X).

**Kok@OCZ** · 4 Feb 2016, 09:25:47

จ้า 980ti เมพ จ้าาา 555

**i2edi3ulL** · 5 Feb 2016, 20:03:07

ทำไมดูตามลลิงค์นี้ https://www.youtube.com/watch?v=wcZxuw3cyQM ทดสอบกับสามเกมส์ ดูเหมือน GTX980Ti จะแรงกว่านิดหน่อยแต่ไม่หน่อยมาก ลองช่วยกันดูหน่อยครับ

**AKK_K** · 5 Feb 2016, 20:14:28

Originally posted by i2edi3ulL View Post

ทำไมดูตามลลิงค์นี้ https://www.youtube.com/watch?v=wcZxuw3cyQM ทดสอบกับสามเกมส์ ดูเหมือน GTX980Ti จะแรงกว่านิดหน่อยแต่ไม่หน่อยมาก ลองช่วยกันดูหน่อยครับ

มันเฉือนกันที่ภาพรวมครับท่านอิตเลอร์ อย่าไปดูรายตัวครับแล้วมาตัดสิน

Page not found | GamersNexus

http://www.gamersnexus.net/guides/22...-vs-gtx-980-ti

และเกมออกใหม่ๆมันบางทีนานกว่าจะ support SLI ได้ เวลาเล่นใช้การ์ดได้ใบเดียว เสียรมณ์

**Kok@OCZ** · 5 Feb 2016, 22:25:00

ใบเดียวดีกว่าครับ

ส่วนตัวผมต้องการความลื่นสุดๆ กับเกมส์เก่าๆอย่าง Bf4

970 sli oc ที่ผมใช้อยู่ แรงกว่า 980ti OC เต็มๆ อยู่ 20%

ผมลองมาหมดแล้ว ซื้อมาลองจริง ใช้จริง ไม่ใช่ ไปก๊อปของคนอื่นมา แล้วมาโพสกูรูรู้

ฟังคนอื่นมาบ้างอะไรบ้าง ผมไม่เชื่อใคร เจอเองลองเอง รู้จริง ไม่เคยมั่วครับผม

**Lovelynest** · 5 Feb 2016, 22:37:07

Originally posted by Kok@OCZ View Post

ใบเดียวดีกว่าครับ

ส่วนตัวผมต้องการความลื่นสุดๆ กับเกมส์เก่าๆอย่าง Bf4

970 sli oc ที่ผมใช้อยู่ แรงกว่า 980ti OC เต็มๆ อยู่ 20%

ผมลองมาหมดแล้ว ซื้อมาลองจริง ใช้จริง ไม่ใช่ ไปก๊อปของคนอื่นมา แล้วมาโพสกูรูรู้

ฟังคนอื่นมาบ้างอะไรบ้าง ผมไม่เชื่อใคร เจอเองลองเอง รู้จริง ไม่เคยมั่วครับผม

สิบปากว่าไม่เท่าตาเห็น สิบตาเห็นไม่เท่ามือคลำ

**Kok@OCZ** · 5 Feb 2016, 22:47:36

Originally posted by i2edi3ulL View Post

ทำไมดูตามลลิงค์นี้ https://www.youtube.com/watch?v=wcZxuw3cyQM ทดสอบกับสามเกมส์ ดูเหมือน GTX980Ti จะแรงกว่านิดหน่อยแต่ไม่หน่อยมาก ลองช่วยกันดูหน่อยครับ

คลิปที่ท่านเอามาลง บอกในรายละเอียดคล้ายกับว่า

970 sli เก่งแต่ใน Heaven ไม่จริงครับ firestrike ก็แรงปกติครับ

970 sli oc 1480/1953 คะแนน gpu ได้ประมาณ 980 sli (stock)

แม้แต่เกม bf4 starcraft2 project cars ก็ได้เฟรมเพิ่มมาปกติ ทำงานได้มาประมาณ 1.9 หายไป 10% ของใบรอง

เรื่องปัญหากับเกมใหม่ๆ หรือ micro stuttering อันนี้เกิดจริง เป็นบางครั้ง

4790K 4.8

**Kok@OCZ** · 6 Feb 2016, 00:20:34

980Ti HOF กับผมก็รู้จักกันดี เหอๆ

Overclockzone ข่าวไอที ซื้อคอมมือสอง รีวิวโน๊ตบุ๊ค รีวิวการ์ดจอ จัดสเปคคอม ซื้อขายคอม

http://www.overclockzone.com/forums/showthread.php/3049511-ทดสอบ-Unigine-Valley-Benchmark-1-0-กันครับ?p=67487451&viewfull=1#post67487451

**dozzaa29** · 9 Feb 2016, 09:12:37

ผมใช้ Gigabyte GTX970 G1 3Way SLI แรงขี้แตกครับ เล่น GTA V ปรับสุด MSAA X4 No แอดว๊าน 1080p FPS ที่ได้ 135-170 เฟรม เรียกได้ว่าแรงขึ้แตกกันเลย ส่วนเกมที่ไม่รองรับ ก็ปรับได้สุด MSAA ก็แล้วแต่เกม เพราะ 970 มันก็มีความแรงพอตัวอยู่แล้วครับ

Announcement

GTX970 SLI กับ GTX780Ti แบบไหนจะปั่นเฟรมเรตใด้สูงกว่ากันครับ

GTX970 SLI กับ GTX780Ti แบบไหนจะปั่นเฟรมเรตใด้สูงกว่ากันครับ

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