GeForce RTX 3070 vs Radeon RX 6600 XT specs and performance
For gaming, the GeForce RTX 3070 graphics card is better than the Radeon RX 6600 XT in our tests.
In our comparison, the Radeon RX 6600 XT has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the Radeon RX 6600 XT also has a significantly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.
Furthermore, the spec sheet for both these GPUs show that they both have the same amount of memory at 8 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.
In addition, the Radeon RX 6600 XT has a slightly lower TDP at 160 W when compared to the GeForce RTX 3070 at 220 W. Heat output doesn't match power consumption directly but, it's a good estimate.
In terms of raw gaming performance in our GPU benchmark, the GeForce RTX 3070 is better than the Radeon RX 6600 XT.