pcie question

[Dehaka]

is the bandwidth required entirely determined by resolution and fps, and doesnt matter what the game is? so e.g, for 4k 60fps of any game, the required bandwidth is exactly the same? if this is the case, can pcie 3 x16 handle 4k 60fps?

[podkall]

PCIe is connection to the card, not monitor, there's (16x) 16 lanes, the connection is very fast otherwise the "talk" through motherboard from and to GPU would be too slow.

 

Why are you asking?

 

Look how 4090 handles running at PCIe 3.0 16x speed: (compared to it's native 4.0 16x which is also it's connector)

 

 

[Millios]

PCIe 3 and above are minimal gains and top end cards have almost no uplift + as long as your card can do 4K 60fps itll do that fine in PCI3 3 4 or 5 and it entirely depends on both the game and card and the settings

[Tetras]

57 minutes ago, Dehaka said:

if this is the case, can pcie 3 x16 handle 4k 60fps?

I believe it is actually the opposite, the performance lost is higher (relatively) at lower resolutions than at higher resolutions.

 

57 minutes ago, Dehaka said:

is the bandwidth required entirely determined by resolution and fps, and doesnt matter what the game is?

The game matters, some games seem to saturate the bus a lot more than others (maybe because they're streaming assets).

 

The amount of VRAM on the graphics card is also important (and the available lanes, obviously), since more VRAM appears to compensate somewhat.

 

Which graphics card are you buying?