AMD Radeon RX 7800 XT & RX 7700 XT Linux Performance

For those curious here is a look at the GPU power consumption across all of the tested graphics cards over the entire span of benchmarks carried out. At least for what's reported by the AMDGPU Linux driver, the RX 7700 XT / RX 7800 XT peak reported power consumption was around 220 Watts.

For those curious about the GPU thermals, here is the GPU temperature for each of the reference cards tested. Both the Radeon RX 7700 XT and RX 7800 XT graphics cards were running comfortably across the wide span of benchmarks.

Lastly for those curious is the geometric mean based on all of the performance benchmarks carried out for this article -- from the Linux gaming metrics to workstation graphics and the Vulkan compute benchmarks. All of the data collected from this fresh round of testing for today's review can be found via this result file.

The Radeon RX 7700 XT and RX 7800 XT align nicely between the existing Radeon RX 7600 and RX 7900 series products. Unfortunately, as mentioned, this comparison is a bit lacking due to not having a number of the RTX 40 series graphics cards currently. Additionally, a much larger comparison is coming with prior generation graphics cards shortly on Phoronix as part of looking at the new Linux 6.6 kernel developments.

Overall the Radeon RX 7800 XT at around $499 card is fitting in quite nicely into AMD's product stack. The RX 7800 XT delivers around 16% better performance than the Radeon RX 7700 XT while costing just 11% more (roughly $449 versus $499 USD). There also didn't end up being much of a difference in the power consumption between the RX 7700 XT and RX 7800 XT for most tested Linux scenarios. Like the rest of the Radeon RX 7000 series / RDNA3 hardware, there is out-of-the-box support for these new graphics cards already if you are on a sufficiently recent Linux kernel and Mesa version. Most should be in good shape for having a nice out-of-the-box, open-source OpenGL/Vulkan experience with the possible exception of needing to ensure you are on a recent linux-firmware.git snapshot for the necessary GPU firmware files. The only other downside to the Radeon RX 7700 XT / RX 7800 XT on Linux is still awaiting AMD to provide "official" ROCm compute support for more of the RDNA3 consumer graphics processors, which is hopefully still on track for later this year.

Thanks to AMD for providing these new RDNA3 graphics cards for launch-day testing on Phoronix and stay tuned for follow-up performance comparisons soon.