Z790 taichi lite Gen5 M2 and RTX 4080 Super |
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domerdel
Newbie Joined: 29 Feb 2024 Location: California Status: Offline Points: 20 |
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Posted: 29 Feb 2024 at 9:58am |
I received my ASRock motherboard and other components arriving over the weekend to start my build. Upon reviewing the instruction manual, if
M2 2_1 is used, then PCIe #1 is downgraded from PCIe 5.0x16 down to 5.0x8. or... If I use M2 2_2 then my Gen5 M2 drive gets bumped down from Gen5x4 to Gen4x4 (128Gbs to 64Gbs). Where will I see the biggest sacrifice on performance between scenario 1 vs. 2 above? some are saying scenario 2, but others say 5x8 (4x16) doesn't fully utilize the bandwidth of 5x16 and I'd see about a half second difference. Components: ASRock Taichi Lite Z790 Gigabyte 4080 Super (refresh of 4080) Crucial T700 Gen5 1TB |
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ASRock_TSD
ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8727 |
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Hi domerdel,
Thank you for your post. This depand on your monitor, if your monitor is 4K, then the method 2 is better. Under 4K resolution, RTX 4090 will get about 1-2% loss in the Gen4x8 mode (RTX40 series support PCIE 4.0 only). So I think RTX 4080 Super is less affected. Performance loss is related to resolution. With the 1080P monitor, you will gets up to 15% performance drop. All the best ASRock TSD |
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