NVIDIA and AMD’s Next-Generation Flagship GPUs Rumored to Draw over 420 Watts of Power

The FPS Review may receive a commission if you purchase something after clicking a link in this article.


NVIDIA and AMD’s next-generation flagship graphics cards, which are expected to leverage the Lovelace and RDNA 3 architectures, respectively, could be more power hungry than anyone might have imagined. This is according to the latest rumors from prominent leakers such as kopite7kimi, who recently commented on speculation about NVIDIA’s flagship GeForce RTX 40 Series products featuring a TDP of at least 400 watts. While that specification already exceeds the GeForce RTX 3090’s 350-watt TDP by a notable amount, kopite7kimi suggested that the TDP for the flagship models will go even higher, stating that “400 is not enough.” As for AMD, Beyond3D forum member and alleged insider Bondrewd recently shut down speculation that Navi 31 could draw as much as 500 watts. That prompted 3DCenter.org to seek out a more probable estimate by looking into the supposed size of the GPU and its components, which led to a potential TBP of 420 to 450 watts.

ChipTSMC 5nm, MCM, total probably ~ 800mm² (or more)TSMC 5nm, monolithic, probably ~ 600mm²
Hardware6 SE, 60 WGP, 15’360 FP32, Infinity Cache, 256 bit GDDR612 RE, 144 SM, 18’432 FP32, 384 bit GDDR6X
Power Consumptionprobably in the direction of 450-480 wattsprobably in the direction of 420-450 watts
Source: 3DCenter.org

This is not entirely surprising, because the graphics chip developers are fighting against two effects: On the one hand, the advances in semiconductor production are not geared towards achieving a power consumption effect equal to the gain in space. If you use the area gain (fully), the result is always a slightly higher power consumption – usually with a greater difference than what you could make up for by improving efficiency at the architecture level. And on the other hand, AMD & nVidia are approaching the 5nm generation, as is well known, with violent hardware jumps – which are generally impossible to achieve with the same power consumption.

Sources: kopite7kimi, Bondrewd (via 3DCenter.org)

Tsing Mui
News poster at The FPS Review.

Recent News