Gigabyte RX 7900 GRE Gaming OC 16G in test of 30 graphics cards

Conclusion

The most “lightweight” AMD Navi 31 (XL) GPU, the slowest memory subsystem, but also the lowest price. That’s the RX 7900 GRE compared to the RX 7900 XT. This Radeon is also noticeably cheaper compared to the RTX 4070 Super, although the GeForce’s power efficiency is more favourable. The gaming performance of the RX 7900 GRE (RTX 4070S), meanwhile, is comparable. That is, as long as you won’t miss ray-tracing graphics..

Conclusion

The RX 7900 GRE is the most efficient of the RDNA 3 Radeons. Gaming performance, meanwhile, is on average between the RX 7900 XT and the RX 6800 (XT), with the RX 7900 GRE roughly in the middle between the two cards. Specifically, with an 11-16% (1080–2160p) deficit to the RX 7900 XT and a 19–28% lead over the RX 6800.

Compared to the RX 6800 XT, it’s 7-14% to the upside (for the RX 7900 GRE). But that’s at significantly higher efficiency. The RX 7900 GRE in the tested design (Gigabyte Gaming OC) is approximately 29–37% more efficient than AMD’s reference RX 6800 XT (RDNA 2). However, the RX 7900 GRE Gaming OC doesn’t really measure up to the Nvidia RTX 4070 Super in this regard. The gaming-wise “similarly powerful” GeForce is in a higher league. This actually includes gaming performance if ray-tracing graphics are taken into account, where the RTX 4070S significantly dominates (over the RTX 7900 GRE). In Battlefield V, at comparable settings the framerate of the RTX 4070S is more than 50% higher, then around 30% in Cyberpunk 2077 (outside of RT Overdrive, on Ultra, without Path Tracing), and similarly in Shadow of the Tomb Raider. In the original Metro Exodus, it’s a little less so. Anyway, it’s probably safe to say that an RT fan won’t find saving with the RX 7900 GRE beneficial. However, if you can live without the ray-tracing graphics, the situation changes and the gaming performance of these graphics cards (RX 7900 GRE and RTX 4070S) is comparable on average.

Please note: In the charts, you may have paused at the position of the RX 7800 XT, noting that it’s unrealistically close to the RX 7900 GRE. However, it’s important to consider here that while the Radeon RX 7800 XT we tested is in the highest-end Sapphire (Nitro+) variant, the Radeon RX 7900 GRE (Gaming OC) is on the opposite side of the spectrum and represents a class where Gigabyte isn’t focused on delivering the highest possible GPU clock speeds.

In the target 1440p resolution, the Radeon (RX 7900 GRE) scores better than the GeForce (RTX 4070 Super) for example in Assassin’s Creed: Valhalla, in Borderlands 3, in Red Dead Redemption 2 and has a small lead without ray tracing even in Control or in Cyberpunk 2077. Of course, it’s always at higher power consumption. The latter is linked to the bulkier design (RX 7900 GRE) with a larger cooler. This also applies to the Gigabyte Gaming OC, where one can highlight the super-low temperature, although the noise is higher. This can be quickly and easily corrected by selecting the silent BIOS option, or manually. For someone, even after changing the BIOS, the operation may still be noisier than they would like, but the good news is that there is still a margin for a custom speed curve. The margin is there not only in terms of cooling the GPU, but also the memory. This is naturally due to its lower bandwidth, for which it has a lower power consumption.

In terms of computing performance, the negative speed difference of the RX 7900 GRE compared to the RX 7900 XT is more pronounced than in games. For example, in Blender the smaller and slower memory is more noticeable, and the RX 7900 GRE Gaming OC is about 30–40% slower compared to the Sapphire RX 7900 XT, depending on what’s being rendered (via OpenCL). Under OpenGL, in SPECviewperf tests the gap is already smaller, and in select applications the RX 7900 GRE already outperforms even the RTX 4070 Super, but that’s pretty rare. Under CUDA, the otherwise equivalent GeForces are generally significantly faster than Radeons under other APIs.

In terms of acoustic profile, the coil noise of the RX 7900 GRE Gaming OC can be classified as “average”. Most of the aerodynamic noise is then in the 750–1500 Hz band, as is common with relatively smaller, low-profile fans. GPU clock speeds of the RX 7900 GRE are relatively lower (about 2370–2440 MHz in games, depending on load). Power consumption at lower loads is average. Around 40 W when video decoding, similar as in a GPU-accelerated Google Chrome web environment (around 36 W). At idle (on a Windows OS desktop) the power consumption (at about 23 W) is quite high and with two higher-resolution monitors or one faster one, it’s even 13% higher, in the same proportion as other cards with the AMD Navi 31 graphics core.

Overall, we rate the Gigabyte RX 7900 GRE Gaming OC 16G positively and for its attractive price/performance ratio it earns the editorial award „Smart buy!“. Compared to the RTX 4070 Super, power consumption is higher, gaming performance with RT graphics is weaker, but AMD/Gigabyte responds to all these things with a lower price. Whether adequately, the market will tell.

English translation and edit by Jozef Dudáš

We would like to thank the Datacomp e-shop for their cooperation in providing the tested hardware


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