Wednesday, February 22nd 2023
AMD Ryzen 9 7900 iGPU Overclocking Pushes Performance Up to 42%
According to SkatterBench, a website known for incredible overclocking attempts, we get to see AMD's Ryzen 7000 series integrated GPU get up to 42% performance improvement from overclocking. Specifically, the SKU used in the attempt was the Ryzen 9 7900 non-X model with 12 cores and 24 threads, clocked at 3.7 GHz base frequency and 5.4 GHz boost speed. The SKU contains a basic AMD GPU integrated into the package; however, not meant for any serious gaming tasks. Nonetheless, it is interesting to see what a two-core RDNA2 GPU clocked at 2.2 GHz managed to achieve once overclocked. The memory clock of the GPU is set to 2.4 GHz at stock.
Running at the base voltage of 0.997 volts under Furmark workload, the iGPU consumes around 38.5 Watts. However, the overclocking attempt pushed the voltage to 1.395 Volts, resulting in a 3.1 GHz iGPU frequency. The GPU Memory clock is now set to 3200 MHz, and the GPU+SOC power is 60.689 Watts, almost double compared to the stock settings. The overclocker used a GFX curve optimizer with various system tweaks to achieve these numbers. While the OC attempt was successful, the most significant performance improvement was a 42% increase, with some game titles averaging less. Below, the blue bar indicates stock, while the green bar indicates OC'd performance. You can check out the YouTube video as well to see more details.
Sources:
SkatterBench, via VideoCardz
Running at the base voltage of 0.997 volts under Furmark workload, the iGPU consumes around 38.5 Watts. However, the overclocking attempt pushed the voltage to 1.395 Volts, resulting in a 3.1 GHz iGPU frequency. The GPU Memory clock is now set to 3200 MHz, and the GPU+SOC power is 60.689 Watts, almost double compared to the stock settings. The overclocker used a GFX curve optimizer with various system tweaks to achieve these numbers. While the OC attempt was successful, the most significant performance improvement was a 42% increase, with some game titles averaging less. Below, the blue bar indicates stock, while the green bar indicates OC'd performance. You can check out the YouTube video as well to see more details.
30 Comments on AMD Ryzen 9 7900 iGPU Overclocking Pushes Performance Up to 42%
All you achieve by that is to get the same video signal to your monitor with 50% more wattage consumption (20w), as this is what ZEN4 iGPU is meant for. That 20w is coming from the main core budget, so less juice for the real player.
Useless, like going LN2, but still nice from purely OC perspective.
"AMD Ryzen 9 7900 iGPU Overclocking Pushes Performance Up to 42%"
So by overclocking the performance reaches up to 42%? 42% of what, Intel CPUs?
:-P
But then again, 42 is the answer to the ultimate question of life, the universe, and everything.
Skatterbencher has some great info as to AM5's design, but clearly isn't familiar with Vega power reporting in HWInfo before. iGPU core, iGPU SOC and "ASIC power" basically just report whatever the hell they want and make no sense whatsoever, it's wild. ASIC power at 0W during full 3.1GHz iGPU load is pretty telling.
Hopefully Phoenix Point have a much stronger memory controller to give the core the bandwidth it deserves.
Good to see that GFX Curve Optimizer is finally useful because GFX frequency isn't limited to +200. It also looks like little to no Vdroop at full tilt 3.1GHz? Very promising
Speaking of... when will Techpowerup release their 7900 review?
It was mentioned as comming soon in the review of 7600 and 7700
given the context of the website and and topic of overclocking the initial title should be clear for the reader IMHO.
"AMD Ryzen 9 7900 iGPU Overclocking Raises Performance By Up To 42%"
And the chart starts at 90% .. kinda misleading .. I expected betterBusy with other processors right now ;)
So that makes it very interesting that the gimped, 2 CU RDNA2 on the Zen4, has so much head room.