ASRock Forums : PCIe 3.0 AM3/AM3+ https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 19 Jun 2026 09:07:03 +0000 Sun, 01 Nov 2015 01:02:39 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=1140 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[PCIe 3.0 AM3/AM3+ : It is a pretty heated topic on...]]> https://forum.asrock.com/forum_posts.asp?TID=1140&PID=5215&title=pcie-3-0-am3-am3#5215 Author: Xaltar
Subject: 1140
Posted: 01 Nov 2015 at 1:02am

It is a pretty heated topic on some forums, the ASUS board you mentioned claims PCIe 3.0 support yet many say it is only emulated not true PCIe 3.0. Given that no GPUs currently available in the consumer segment can fully saturate or bottleneck on PCIe 2.0 x16 bandwidth there is no way to determine if ASUS' claims are true or just a BIOS trick that fools the OS into detecting PCIe 3.0. The only reason anyone would want PCIe 3.0 is for SLI/Crossfire solutions as PCIe 2.0 x8 is about the same bandwidth as PCIe 3.0 x4 so with more than 2 GPUs you will be running into some bottleneck on a PCIe 2.0 board. Personally I don't see what all the fuss is about, you lose only a tiny amount of performance via bottleneck anyway given that multi GPU scaling yields diminishing returns for every GPU you add past 2 anyway. There is no way to know for sure if the GPUs are bottlenecking or if it is just the scaling causing a performance hit. 

When we are talking at best an extra 1 or 2 FPS on only the highest end multi GPU systems vs PCIe 2.0 I don't see why any manufacturer would wast time and energy trying to implement PCIe 3.0 on an AMD board aside perhaps from doing what ASUS did and emulate it so far as the OS is concerned. Manually setting my Z97 Extreme 3 to PCIe 2.0 makes absolutely no difference to my benchmarks neither does setting it to PCIe 1.0 with my GTX 960 though 1.0 may bottleneck a higher end card, a little.
]]> Sun, 01 Nov 2015 01:02:39 +0000 https://forum.asrock.com/forum_posts.asp?TID=1140&PID=5215&title=pcie-3-0-am3-am3#5215 <![CDATA[PCIe 3.0 AM3/AM3+ : The PCI-e Gen3 is based on the...]]> https://forum.asrock.com/forum_posts.asp?TID=1140&PID=5212&title=pcie-3-0-am3-am3#5212 Author: ASRock Expert
Subject: 1140
Posted: 01 Nov 2015 at 12:10am

The PCI-e Gen3 is based on the CPU,
so, until AM4, no PCI-e Gen3 for AMD users.

Sabertooth is just a fake advertisement.
]]> Sun, 01 Nov 2015 00:10:34 +0000 https://forum.asrock.com/forum_posts.asp?TID=1140&PID=5212&title=pcie-3-0-am3-am3#5212 <![CDATA[PCIe 3.0 AM3/AM3+ : Hello Friends,Why there was no...]]> https://forum.asrock.com/forum_posts.asp?TID=1140&PID=5210&title=pcie-3-0-am3-am3#5210 Author: khan.sikki
Subject: 1140
Posted: 31 Oct 2015 at 11:37pm

Hello Friends,

Why there was no mother board designed for AM3 / AM3+ with pcie 3.0, up to my knowledge only ASUS have this achivement 

SABERTOOTH 990FX/GEN3 R2.0