ASUS GeForce RTX 4080 Super TUF OC Review 18

ASUS GeForce RTX 4080 Super TUF OC Review

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Value and Conclusion

  • The ASUS GeForce RTX 4080 Super TUF OC is expected to sell for $1100, the TUF non-OC will be available for $1000
  • $100 cheaper than RTX 4080 non-Super
  • Excellent performance for 4K
  • Incredible energy efficiency
  • DLSS 3 frame generation
  • Ray tracing performance improved
  • Extremely quiet (quiet BIOS)
  • Idle fan-stop
  • Low temperatures
  • Backplate included
  • Additional HDMI output
  • Dual BIOS
  • Support for HDMI 2.1
  • Support for AV1 hardware encode and decode
  • 16-pin power cable adapter included
  • Almost no performance increase over RTX 4080 non-Super
  • $100 more expensive than MSRP
  • Smaller manual power limit adjustment range than FE
  • No DisplayPort 2.0 support
Our review coverage of the GeForce RTX 4080 Super includes nine cards: ASUS RTX 4080 Super STRIX OC, ASUS RTX 4080 Super TUF OC, Galax RTX 4080 Super SG, Gigabyte RTX 4080 Super Gaming OC, MSI RTX 4080 Super Expert, NVIDIA RTX 4080 Super Founders Edition, Palit RTX 4080 Super GamingPro OC, PNY RTX 4080 Super Verto OC, Zotac RTX 4080 Super AMP Extreme Airo.

With the GeForce RTX 40 Super series, NVIDIA is refreshing their Ada-based lineup for 2024. At CES Las Vegas, the company announced three new SKUs: GeForce RTX 4070 Super, RTX 4070 Super Ti and RTX 4080 Super. While we reviewed RTX 4070 Super two weeks ago, and RTX 4070 Ti Super last week. Today, the final review embargo has lifted, for the GeForce RTX 4080 Super. Unlike previous launches, both MSRP and non-MSRP reviews go live at the same time and the first cards should be on-shelf now.

Architecture
RTX 4080 Super is built using the same AD103 GPU as the RTX 4080 non-Super. This means that the RTX 4090 is still the only gaming GPU that's using the more powerful AD102 graphics chip. While the RTX 4080 came with 9,728 cores on the chip, the RTX 4080 Super runs the full shader count available in the GPU—10,240, or +5.3%. NVIDIA hasn't increased card's power limit of 320 W, but the rated boost frequency has received a 1.8% clock bump, to 2550 MHz, up 45 MHz from 2505 MHz on the RTX 4080 non-Super. Last but not least, the memory is running at 23 Gbps now, vs 22.4 Gbps (+2.7%). The VRAM size is still 16 GB, connected using a 256-bit memory bus, and the L2 cache is identical, too, at 64 MB.

The ASUS TUF OC is the company's slightly-premium model of the RTX 4080 Super, there's also the much more expensive STRIX, which we also reviewed today. The TUF comes with a large triple-slot, triple-fan cooling solution that's made from all-metal and a small 60 MHz factory OC to a rated boost of 2610 MHz, or +2.4%.

Performance
Averaged over the 25 games in our test suite, at 4K, we find the NV Founders Edition only 1.5% faster than 4080 non-Super Founders Edition, which is MUCH less than expected. While NVIDIA never said "+5%," I definitely expected more. It's not a power limit issue, running at max power yields another +1% only. These numbers are pretty constant across resolutions, and even with RT enabled, too. Looking at the individual games, the differences are 1 or 2 FPS, nothing you'd ever notice subjectively. While that's certainly a bit disappointing, the fact remains that RTX 4080 Super, just like the RTX 4080 non-Super, is a fantastic card for gaming. In a pure raster scenario, the AMD Radeon RX 7900 XTX is still a tiny bit faster, but NVIDIA's card makes up for that with much better RT performance. Still, I feel like beating the XTX across the board was one of the goals of RTX 4080 Super, and NVIDIA failed here. In NVIDIA's defense, the RTX 4080 Super leverages the full GPU, no units were held back, even though small additional gains could have been achieved with higher clock speeds and power limit. The ASUS TUF OC gains an additional 3% over the NVIDIA FE. Compared to the RTX 4070 Ti Super, the performance uplift is 22%, the card is also 33% faster than RTX 4070 Ti non-Super. RTX 3080 Ti performance is roughly comparable to RTX 3090, which makes the gen-over-gen uplift a very solid 32%. NVIDIA's flagship, the RTX 4090 is still the undisputed king of the hill, offering almost 25% better performance.

Taking a closer look at our FE test results, most of the games are in the 1.5% range—it's not that one game is 7% and the others are 0%, the gains are really small across the board. There is definitely some variations in GPU chip silicon quality, which affects performance due to the way NVIDIA's Boost algorithm works, but with my sample size of 9 cards tested, I think that I can confidently say that there's no way you're getting +5% out of the 4080 Super, unless you manually overclock it. Other reviewers have similar numbers, so it's not just me. Surprisingly, the RTX 4070 Super, initially considered the least exciting among the new releases on forums, showed the highest performance increase (+15%). In contrast, the RTX 4070 Ti Super, despite receiving a GPU upgrade and a 33% memory bandwidth increase, only saw a modest +5% in extra performance. Today's release could almost be labeled a "rebrand," but the improved pricing certainly adds to its appeal.

Optimum Resolution, Upscaling
No doubt, if you desire a great 4K experience, then RTX 4080 Super is what you want. In our testing the card reached well over 60 FPS at 4K with maximized settings and no upscaling. While it's a bit overkill for 1440p, I could still see people with high-refresh monitors opting for it, even though I'd probably buy a better monitor first, before spending $1000 on a graphics card. On the other hand, this could be seen as some sort of future proofing. Just like the other GeForce 40 cards, RTX 4080 Super has support for all of NVIDIA's DLSS technologies: NVIDIA DLSS 2 upscaling, DLSS 3 frame generation and DLSS 3.5 ray reconstruction. On top of that you can enable AMD FSR 2 and FSR 3 in games, because those technologies work on all GPUs from all vendors. Basically this means that you'll be covered in terms of upscaling and frame generation. While DLSS 3 is definitely the leading solution right now, with the best game support, AMD is pushing hard and their frame generation solution will come to several major titles in 2024. From a technology perspective, DLSS 3 is superior, because it uses the optical flow hardware unit in Ada GPUs, and NVIDIA Reflex will help bring down the input latency.

VRAM & Memory Bus
GeForce RTX 4080 Super comes with 16 GB VRAM, which makes a lot of sense in this segment, even though I feel a bit more could be useful in the future. While AMD offers 20 GB on the RX 7900 XT and 24 GB on the XTX, the extra memory cannot make a difference, not even in our most memory intensive test (Alan Wake 2 RT at 4K). If VRAM was something that you could scale up and down like clock frequency then I would have loved to see 20 GB, but that's easier said than done. VRAM size is tied to the number of memory chips installed on the card. These come in 2 GB typically, which means for 20 GB you'd have to install 10 chips, which requires a 320-bit wide memory interface in the GPU (10x 32 bit). The memory interface on AD103 supports only up to 256-bit, so NVIDIA would have had to use the much bigger (= more expensive) AD102. Using 4 GB chips, which aren't available in any significant volume would mean five chips, using a narrow 160-bit bus—I'd prefer 256-bit 16 GB over that any day. Technically that does leave room for a RTX 4080 Ti Super, with AD102, 20 GB and 320-bit, maybe something for the $1200-$1400 price range that just opened up with 4080 Super.

RT
As expected, ray tracing works very well on the GeForce RTX 4080 Super, clearly offering a superior experience than what any AMD card can achieve. For example, RX 7900 XTX is over 20% slower with RT enabled. That's because the dedicated RT units in AMD's cards are weaker, so more tasks are offloaded to the GPU shaders. While I have to admit that RT isn't as crucial in the lower performance segments, where pricing is much more relevant, I feel that RT is very important in this price range. You're spending a lot of money, which means you want to be able to dial the settings up as high as possible, for maximized eye candy.

GPU Compute
With our new 2024 test suite, we are adding a section focused on testing GPU Compute, which is becoming more and more important every day. Emerging AI Technologies like ChatGPT, Stable Diffusion and others are transforming the world. While the use of compute on the consumer desktop is limited today, it will grow considerably. For our first round of testing we've picked three real-life workloads that allow us to get a feel what to expect. Here, NVIDIA is the clear leader with a substantial advantage over both AMD and Intel. It's not only about performance, but also about the software ecosystem, which is much more advanced on the NV side, but the other players are working hard to catch up, I'm sure.

Physical Design, Heat & Noise
The ASUS TUF cooler design stands out thanks to its thick metal construction, even on the main cooler shroud, which is usually made from plastic on other cards. The large triple-slot, triple-fan cooling solution achieves excellent temperatures and noise levels compared to the NVIDIA FE. With 33.8 dBA, the card is "quiet," but given the super-low temperatures of 63°C, I feel that it could have been much quieter. It seems that ASUS wanted to follow the FE temperatures (just like other vendors). Good thing that ASUS includes as dual BIOS feature with their card with considerably lowers the noise levels to 28.4 dBA, which is almost whisper quiet. Temperatures are only marginally increase, 69°C is still very good. Our apples-to-apples noise-normalized cooler comparison test confirms that the cooler is 4.5°C better than the FE at same head load and noise levels. As expected for a modern graphics card in 2024, the fans will stop spinning when not gaming, for the perfect noise-free experience.

Power
Power efficiency of the RTX 4080 Super is just as amazing as the RTX 4080 non-Super. The card offers fantastic performance, yet consumes only around 300 W during gaming, which means PSU requirements are minimal, and this helps with heat and noise, too, because the cooler has to work less hard. AMD's Radeon RX 7900 XTX is a bit more power-hungry with 350 W, but it's not a night-and-day difference, neither for your power bill, nor for PSU capacity planning. While there is still some controversy around the 12-pin power connector, all RTX 4080 Super cards come with it, and I'm a big fan, even though I'm not sure if the location in the middle of the card is the best possible choice.

Overclocking
There is not much to report on overclocking, other than it works, is easy to do and will yield you around 6 to 7%, which is the typical range that we've been seeing from most cards in recent years. With this review we've switched our OC testing to use maximized power limits instead of the default, but it really doesn't make much of a difference, RTX 4080 Super is not power starved. While there's some MSRP cards that don't allow any manual power limit adjustments, the TUF OC allows for 352 W, which is a little bit lower than the Founders Edition—I expected more.

Pricing & Alternatives
NVIDIA has set an MSRP of $1000 for the RTX 4080 Super and that's the real innovation here. Compared to the current $1200 for the RTX 4080 non-Super, this introduces a significant 20% discount. I have to applaud NVIDIA for that, especially, considering that there's not much competition in this segment. AMD is happy with their $970 price point for the 7900 XTX, but that changes today. RTX 4080 Super at $1000 means that RX 7900 XTX becomes unsellable unless its price is lowered considerably. The RTX 4080 Super offers superior RT performance, similar raster perf and support for DLSS—exactly what people in the premium segment are looking for. Even at $900 I'm not sure if I'd prefer 7900 XTX over a $1000 4080 Super, it's just a 10% delta. Still, $1000 is definitely not a steal for the RTX 4080 Super and what it offers—the 2024 GPU market is still expensive.

ASUS wants $1100 for their TUF OC, which is a pretty steep $100 increase that can't be justified by the gains from the factory OC alone. You do get a better cooler, with a nice metal shell and a dual BIOS with quiet mode. Still, I'd be willing to pay $1050, but not $1100. The TUF non-OC sells for NVIDIA MSRP of $1000—definitely something worth considering. If you want to save a bit of money, probably the most interesting alternative is RX 7900 XT, which currently sells for $710, but is considerably slower, which means lower detail settings or upscaling, but there's no DLSS on the card to help with that. NVIDIA has confirmed that the RTX 4080 non-Super is now end-of-life. You could potentially get a card at a good price; anything $950 and below is what I'd call "interesting." If it's higher, go for the Super model, also for its better resale value. If you really must have the best, then the RTX 4090 is what you want—that hasn't changed with the release of the RTX 4080 Super, but be prepared to pay for it: +80% for an almost 30% increase in performance is tough. At the end of the day, RTX 4080 Super is disappointing in terms of the changes it brings, but it redeems itself thanks to its greatly improved pricing. While I'm sure there will be a lot of drama about the minimal gains, what the GPU market really needs is lower prices, not marginally better performance for the same price. In this regard, the RTX 4080 Super can be considered a success.
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Nov 21st, 2024 10:47 EST change timezone

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