pcie PCIe 2/3/4 - Gaming Impact

[Schyken]

I don't have much knowledge about the impact of PCIe Gen differences in gaming. I've never really popped in a PCIe 3 card into a PCIe 2 slot and games on it... When it comes to data processing, which is my area, it has a severe impact on time and efficiency. But, from what I can tell about how cards handle gaming, it shouldn't have such a devastating impact, yeah? I'm sure theres a difference, but not enough to suffer from it? (Any reading material/articles on this would be appreciated if you have the time to link me a few )

[Redsun20]

5 minutes ago, Schyken said:

I don't have much knowledge about the impact of PCIe Gen differences in gaming. I've never really popped in a PCIe 3 card into a PCIe 2 slot and games on it... When it comes to data processing, which is my area, it has a severe impact on time and efficiency. But, from what I can tell about how cards handle gaming, it shouldn't have such a devastating impact, yeah? I'm sure theres a difference, but not enough to suffer from it? (Any reading material/articles on this would be appreciated if you have the time to link me a few )

No, for gaming this isn't much of an assiue

[LukaH]

well amd boards are still pcie 2.0 but their cards are 3.0 without anybody specifically calling that fact out i'd say for gaming it doesnt matter 

 

i guess you are too lazy to google.... 

 

http://www.guru3d.com/articles-pages/pci-express-scaling-game-performance-analysis-review,1.html

[Mira Yurizaki]

Has little to almost no impact:

 

https://www.techpowerup.com/reviews/AMD/R9_Fury_X_PCI-Express_Scaling/

https://www.techpowerup.com/reviews/NVIDIA/GTX_980_PCI-Express_Scaling/

http://www.guru3d.com/articles_pages/pci_express_scaling_game_performance_analysis_review,5.html

 

Graphics cards use the PCIe bus as like a storage bus: it loads up everything it needs into VRAM and unless it's streaming textures in and out (which can be something like 1GB-2GB if that, and probably not all the time), it's not using it.

[jools]

http://www.hardocp.com/article/2012/07/18/pci_express_20_vs_30_gpu_gaming_performance_review/14#.WBII8GfrtZQ

marginal performance gain in pci-e3 over pci-e 2..... 3%-8%. simply put the bandwidth is not hogged during game play

[Trav_X]

Would I be fine running a 1060 6gb off a PCIe 3.0 8x slot? It's working with a Xeon and the motherboard I might get only has dual PCIE 3.0 8x slots and the rest are less than that.

[Mira Yurizaki]

1 minute ago, Trav_X said:

Would I be fine running a 1060 6gb off a PCIe 3.0 8x slot? It's working with a Xeon and the motherboard I might get only has dual PCIE 3.0 8x slots and the rest are less than that.

Yes, you'll be fine.