Do the Ryzen 9 7900 and GeForce RTX 3070 bottleneck each other?

No. At 1080p (1920 x 1080) the Ryzen 9 7900 keeps the GeForce RTX 3070 fed with a little headroom to spare, which is what a balanced build looks like. Expect about 79 fps on High.

How many fps do the Ryzen 9 7900 and GeForce RTX 3070 get at 1080p (1920 x 1080)?

Around 79 fps on the High preset. The Ryzen 9 7900 tops out near 147 fps and the GeForce RTX 3070 near 81 fps, and the lower of the two sets the frame rate.

Ryzen 9 7900 + GeForce RTX 3070 Bottleneck Calculator

Whether the Ryzen 9 7900 and the GeForce RTX 3070 hold each other back, at every resolution, with the frame rate you can expect and the single upgrade that fixes it.

Processor

Graphics card

Screen resolution

Graphics preset

Memory (RAM)

Primary usage

Estimates built from published benchmark data, not a test of your exact PC. How we calculate this.

The same pair at every resolution

A processor pushes roughly the same number of frames whatever the resolution. A graphics card pushes far fewer as pixels go up. That is why the limit moves as you climb this table, and why a bottleneck figure quoted without a resolution means nothing.

Resolution	Estimated fps	Limited by	Gap
720p (1280 x 720)	107 fps	Balanced	0%
1080p (1920 x 1080)	79 fps	Balanced	0%
1440p (2560 x 1440)	59 fps	GPU	18.4%
Ultrawide 1440p (3440 x 1440)	39 fps	GPU	46.4%
4K (3840 x 2160)	23 fps	GPU	68.9%
8K (7680 x 4320)	9 fps	GPU	87.8%

What to do about it

Nothing to fix. At 1080p (1920 x 1080) the Ryzen 9 7900 has just enough headroom over the GeForce RTX 3070 to keep the card fed without wasting money on either side. This is what a balanced build looks like.

Modelled from published benchmark data, not measured on this exact combination. The indexes behind these figures and the sources they come from are on how we calculate this.