RTX 4070 vs RX 7900 GRE faceoff: Which mainstream graphics card is better?

Source: Tom's Hardware added 17th Apr 2024

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This GPU faceoff between AMD’s RX 7900 GRE (Golden Rabbit Edition) and Nvidia’s RTX 4070 takes a look at one of the most interesting GPU segments. Originally released as a China-exclusive GPU, the 7900 GRE is now available internationally at virtually identical pricing to the RTX 4070, and both rank among the best graphics cards, making comparisons between these two GPUs an important look at how the two GPU behemoths compete.

Since its international debut, the RX 7900 GRE received a price cut from $649 down to $549, putting it in direct competition with the RTX 4070. The 4070 now goes for $520-$550 after receiving a price cut, following the launch of the RTX 4070 Super at the $600 price point.

Both GPUs are great competitors in the $500~$600 price bracket, which represent the modern mainstream/midrange graphics card market. For this GPU faceoff, we’ll look at how the RX 7900 GRE and RTX 4070 handle gaming at 1080p, 1440p, and 4K resolutions, along with other performance aspects like AI and professional workloads. We’ll also check out other factors including power efficiency, features, technology, pricing, and overall value.

RTX 4070 vs. RX 7900 GRE: Performance

(Image credit: Future)

We’ve previously looked at how the RTX 4070 and RX 6950 XT stack up, but things have changed in the past year. For most people looking at a mainstream graphics card, gaming performance will be the most important consideration, but we’ll also briefly cover the AI and professional application aspects.

Diving into the gaming benchmarks, both GPUs provide very similar overall performance at 1080p, 1440p, and 4K — that’s factoring in all 19 titles in our current test suite, including eight games that have ray tracing enabled. The performance gap ranges from +1.4% in favor of the 4070 at 1080p medium, to +4.1% in favor of the 7900 GRE at 4K ultra — the 7900 GRE comes out 1.5% ahead at 1080p ultra and 3.9% ahead at 1440p ultra as well.

But if we split the game roster between ray tracing and rasterization games, things are a bit more interesting. Overall, the RTX 4070 outperforms the RX 7900 GRE in the ray tracing games by 10–13 percent, while the RX 7900 GRE outperforms the RTX 4070 by 5–17 percent in rasterization-only titles.

There are a few outliers worth mentioning. Borderlands 3 as usual heavily favors AMD GPUs and is a whopping 36% faster on the RX 7900 GRE at 1440p ultra. Borderlands 3 is an AMD-sponsored game, and it has always favored AMD GPUs. The same can also be said of Far Cry 6 (21%), Red Dead Redemption 2 (20%), and Watch Dogs Legion (27%) as well, with only Far Cry 6 being AMD promoted while Watch Dogs Legion was Nvidia promoted.

On the flipped side, Nvidia and the 4070 claim a massive lead in Minecraft, with a 54% lead — and we’ve seen similar results in other games that use full path tracing, like Cyberpunk 2077 and Alan Wake 2. The latter as an example ran at 52 fps on the 4070 at 1080p with maxed out settings, including Quality mode upscaling, while the 7900 GRE only managed 29 fps (using FSR2 upscaling).

In general, relative performance remains pretty consistent between GPUs across all three resolutions. That’s good to see and it means that there are no glaring weak spots. Even at 4K, the two GPUs have practically the same relative performance as at other resolutions, even though the AMD card has more VRAM and bandwidth.

Overall, both GPUs deliver good 1440p gaming performance and excellent 1080p performance — not that we’d expect anything less from $500+ graphics cards. RT performance dips under 60 FPS in most games at 1440p ultra, but that’s typical of what you should expect on mainstream GPUs and you’ll want to use DLSS or FSR to boost frame rates. 4K performance ranges from reasonably playable to pretty dire, and you’ll need upscaling to hit 60 fps in most games — that or dial back the graphics settings a notch or two.

(Image credit: Future)

As far as AI/professional benchmarks are concerned, the RTX 4070 destroys the RX 7900 GRE in Stable diffusion and Blender. It’s nearly twice as fast as the Golden Rabbit for Stable Diffusion — in both 768×768 and 512×512 image generation. Blender has the Nvidia GPU more than doubling the performance of the 7900 GRE as well. These are both strong suits for Nvidia GPUs.

On the other hand, if you’re hoping to do professional CAD/CAM work or certain other professional tasks, AMD tends to be far more generous with driver optimizations there. The 7900 GRE easily defeats the 4070 in SPECviewperf 2020 v3, with an overall (unofficial) score that’s 127% higher. That comes down to the individual test results (not shown), where Siemens NX in particular does very poorly on Nvidia’s non-professional GPUs.

These benchmarks — AI, 3D rendering, and professional — aren’t nearly as important for consumer GPUs, so these charts are more a side note than a primary consideration. If you do care about any of them, weight your own decision accordingly.

Performance Winner: Tie

Overall, it’s a close battle between these two GPUs. The gaming performance gap is less than 5% even at 4K. If you only care about rasterization performance, AMD would get a win here, but ray tracing in games continues to become more prevalent and Nvidia has strong AI performance as well — not to mention better support for DLSS (at least for now). Across a wide selection of games, both GPUs deliver a similar experience and are a great choice for 1440p gaming.

RTX 4070 vs. RX 7900 GRE: Price 

Pricing between the RTX 4070 and RX 7900 GRE is practically identical at this point in time. If you want to get super technical the RTX 4070, can be had for $10 cheaper at the time of writing, though that also requires the selection of a dual-fan card. We can’t really get too excited about a $10 difference on a $500+ graphics card.

The RTX 4070 got a significant price cut when the RTX 4070 Super launched, dropping from the $550–$600 range down to the $530–$550 range. For most people, the RX 7900 GRE was only ever readily available at its $549 U.S. launch price — conversions from Chinese Yuan to USD suggest it got a $100 price cut, but shipping and handling never made sense when the card was a China exclusive.

Price Winner: Tie

Considering this is a highly contested market segment, it’s not surprising that both AMD and Nvidia deliver a similar overall value and experience. There’s been some fluctuation over time, with official and unofficial price cuts giving one or the other company a short-lived advantage, but it’s difficult to argue against either card.

RTX 4070 vs. RX 7900 GRE: Features, Technology, and Software

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Graphics Card RTX 4070 RX 7900 GRE
Architecture AD104 Navi 31
Process Technology TSMC 4N TSMC N5 + N6
Transistors (Billion) 32 45.6 + 4x 2.05
Die size (mm^2) 294.5 300 + 225
SMs / CUs 46 80
GPU Cores (Shaders) 5888 5120
Tensor Cores / AI Cores 184 160
Ray Tracing “Cores” 46 80
Boost Clock (MHz) 2475 2245
VRAM Speed (Gbps) 21 18
VRAM (GB) 12 16
VRAM Bus Width 192 256
L2 / Infinity Cache 36 64
ROPs 64 160
TMUs 184 320
TFLOPS FP32 (Boost) 29.1 46
TFLOPS FP16 (FP8) 233 (466) 92
Bandwidth (GB/s) 504 576
TBP/TGP (watts) 200 260
Launch Date Apr 2023 Jul 2023
Launch Price $599 $649
Current Price $530 $540

Nvidia and AMD both have relatively similar sounding features and technology, and the respective software has evolved over the years to being comparable as well. However, Nvidia has the edge over AMD when it comes to introducing bleeding-edge technologies first, like G-Sync, hardware-accelerated RT, GPU-accelerated image upscaling via DLSS, AI tools like ChatRTX, and more. AMD normally comes up with a decently competitive alternative for most of Nvidia’s tech, and its solutions are often open-source and will run on non-AMD GPUs. Perhaps that’s because AMD has to make open-source alternatives if it wants them to be used, though the console factor does muddy the waters.

Great examples of the above are FSR, FSR 2.0, and FSR 3.0, and AMD FreeSync technology. Nvidia’s solutions came first and work great if you have the required hardware, but AMD’s solutions work on basically everything. FreeSync for example is arguably the superior option these days, with G-Sync Compatible basically capitulating to the inevitable. There are far more FreeSync than G-Sync displays today, and while Nvidia tends to do a better job at certifying which displays work well with its adaptive refresh rate technology, most gamers don’t like getting bogged down in the details. You can use FreeSync monitors with AMD and Nvidia GPUs, but if you buy a G-Sync display, you’re basically locked into Nvidia hardware until you upgrade your monitor.

While FreeSync ultimately represents an AMD win, AMD’s other technologies are generally less capable or less mature than Nvidia’s competing technologies. FSR has never been able to compete with DLSS when it comes to image quality, and even trails XeSS in that area. AMD Anti-Lag+ had to be pulled back completely due to anti-cheat issues, where Nvidia Reflex has been integrated by the game developers in far more games.

AMD is also less capable on the ray-tracing front, which is seeing more adoption these days. Nvidia brought RT to market first and has basically doubled the RT throughput of the hardware in each succeeding generation. For the most demanding RT games, AMD’s fastest RX 7900 XTX basically matches the previous generation RTX 3080 10GB.

AI performance is also another consideration that’s becoming more important. Nvidia’s lead over AMD is even larger in this area than in ray-tracing. The RTX 4070 offers a theoretical 233 TFLOPS of FP16 compute, and 466 TFLOPS for FP8 — the latter appears ready to become more useful for inference workloads as time continues to pass. AMD’s RX 7900 GRE only delivers 92 TFLOPS of FP16, with no support for FP8. AI may not be a factor for gamers right now, but it’s a feature that could go truly mainstream in the coming years.

AMD does win on raw VRAM capacity, offering 16GB versus Nvidia’s 12GB. It also delivers more memory bandwidth, 576 GB/s versus 504 GB/s. This looks like a bigger win on paper than what we experienced in practice. Nvidia GPUs tend to do better with less VRAM than their AMD counterparts, often to the point were a 10GB Nvidia card feels like a 12GB AMD card. For 12GB versus 16GB, few games actually run into capacity problems with 12GB on Nvidia, so it ends up not being a huge issue. We do appreciate that AMD provides more VRAM and we wish Nvidia would do the same, but the day to day experience on the RTX 4070 remains competitive.

We have less to say about the drivers and software side of things. AMD and Nvidia release driver updates for their GPUs regularly. Sometimes drivers from either Nvidia or AMD will boost game performance significantly, but usually that’s due to a game being either Nvidia sponsored or AMD sponsored, or from driver bugs that needed fixing. Nvidia publishes more WHQL-certified drivers than AMD, but Microsoft rarely does much to test quality other than checking that Windows functionality isn’t broken.

AMD does have an edge over Nvidia in its user interface. The latest iteration of AMD’s Radeon Settings utility looks far more modern than Nvidia’s split Control Panel and GeForce Experience approach, and while the Nvidia App may eventually fix that, it’s in beta and has plenty of bugs and missing elements right now. GeForce Experience also requires a user account and login for full functionality, where AMD has no such restriction.

Features, Technology, and Software Winner: Nvidia

Nvidia wins this category thanks to its superior hardware features and software. AMD may get the nod on the driver experience, and it offers more VRAM, but Nvidia has more features overall, better technology, and more software than AMD. Nvidia’s suite of GPU-accelerated features is more mature and less prone to issues, with better support for AI, upscaling, ray-tracing acceleration, and more — including other items that we didn’t dig into like DLSS 3.5 Ray Reconstruction, Broadcast, Chat with RTX, Reflex, and others.

(Image credit: Shutterstock)

RTX 4070 vs. RX 7900 GRE: Power Efficiency

(Image credit: Future)

The first two categories were a close battle, but the RTX 4070 easily wins in the power and efficiency category. Nvidia’s Ada Lovelace GPU pulls about 65W–80W less power on average, at each tested resolution, than AMD’s RX 7900 GRE. In our 19-game geomean calculation, the RTX 4070 lands at 175W–192W at ultra settings, while the RX 7900 sucks down 250W–265W.

Factor in performance, which was similar as noted above, and the RTX 4070 gets 0.610 fps per Watt at 1080p ultra compared to the RX 7900 GRE’s 0.431 FPS/W. That gives the Nvidia GPU a 42% advantage in overall efficiency. Things don’t change much at 1440p ultra, where the 4070 is still 37% more efficient.

Nvidia delivered some major improvements in power use and efficiency with the Ada Lovelace architecture, particularly when not looking at the RTX 4090. Much of the boost comes from moving from Samsung’s 8N process node to TSMC’s 4N node, but other architectural changes also factor in.

In contrast, AMD didn’t improve efficiency much at all when looking at RDNA 3 versus RDNA 2. The biggest change was the move to a chiplet architecture on the larger GPUs, which was a cost saving measure rather than a way to improve performance or efficiency. The RX 7900 GRE actually rates as decently power-efficient, with the best FPS/W rating at 1080p out of all RDNA3 GPUs, but the RX 7900 XT and 7900 XTX pull ahead at 1440p and 4K, respectively.

Power and efficiency also have a knock-on effect with other aspects of a GPU, like the design of the cards. Nvidia makes a reference RTX 4070 Founders Edition, which uses two 8-pin connectors and a 16-pin adapter. It’s a relatively compact dual-fan, dual-slot card, but there are plenty of third-party 4070 cards that use a single 8-pin connector. There are dual-fan 7900 GRE cards as well, like the Asus Dual and Acer Nitro, but those are both 2.5-slot designs and all of the 7900 GRE cards need dual 8-pin adapters. That might make a difference to some users — and note that the top image has the cards relatively to scale, showing just how much larger some of the custom designs can be compared to Nvidia’s reference card.

Power Efficiency Winner: Nvidia

Power consumption and efficiency aren’t a critical consideration for most gamers, which is why this is our fourth category. However, all other things being equal, we’d much rather have a GPU consuming 70W less power. Less power means less heat and typically less noise from your PC — all good things. Lower power use also opens the door for smaller dual-slot, dual-fan solutions and even mini-ITX card designs. Many RTX 4070 cards also come with a single 8-pin connector, while most RX 7900 GRE cards require two 8-pin connectors. The RTX 4070 ends up as a better option for upgrading older PCs with smaller power supplies.

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RTX 4070 vs. RX 7900 GRE Verdict

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Round Nvidia RTX 4070 AMD RX 7900 GRE
Performance
Price
Features, Technology, Software  
Power and Efficiency  
Total 4 2

(Image credit: Shutterstock)

It was a close fight, but in the end the Nvidia RTX 4070 wins. These GPU faceoffs aren’t just about raw performance or any other single category, but rather an overall impression of the cards. We factor in all aspects, from performance to features to technology and more. Gamers looking for the best all around experience will find the RTX 4070 ends up technically superior to the 7900 GRE, with a more versatile set of features and lower power consumption, all while providing similar baseline performance.

That doesn’t mean the RX 7900 GRE is a bad graphics card, and in fact it’s one of AMD’s top offerings right now. It’s interesting that AMD waited to launch such a compelling option until it had basically cleared out all the previous generation hardware, and the 7900 GRE definitely gets the nod over the slightly cheaper RX 7800 XT. If you really only care about raw rasterization performance, or VRAM capacity, the RX 7900 GRE can even be the better option — you just have to ignore a lot of extra qualifications, like ray tracing, DLSS, and AI.

The RTX 4070 represents the better product overall. Does the RTX 4070 suit everybody? No. Would an RX 7900 GRE be better for gamers who don’t use ray-tracing, AI, or Nvidia’s feature set? Probably yes. This comparison feels similar to the Xbox Series X and PlayStation 5 consoles. The Xbox Series X is technically the faster console, but the PlayStation 5 far outsells it due to the PlayStation ecosystem and all of the games you can play on Sony’s console. In this case, the RX 7900 GRE may be the technically faster GPU in specific games, but the RTX 4070 offers a better ecosystem of hardware and software technologies.

More GPU Faceoffs

GeForce RTX 4070 vs Radeon RX 6950 XT: Which GPU Is Better?

GeForce GTX 1650 Super vs Radeon RX 6500 XT: Sub-$200 GPU Face-Off

AMD vs Nvidia: Who Makes the Best GPUs?

Aaron Klotz is a freelance writer for Tom’s Hardware US, covering news topics related to computer hardware such as CPUs, and graphics cards.

Read the full article at Tom's Hardware

media: Tom's Hardware  

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