• Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!

FRONTPAGE AMD FX Processors and DirectX 12

Overclockers is supported by our readers. When you click a link to make a purchase, we may earn a commission. Learn More.

Overclockers.com

Member
Joined
Nov 1, 1998
Today we're going to have a look at the benefits of DirectX 12 (henceforth DX12) and system performance when using an AMD FX processor. To best explain why Windows 10 and DX12 will have such an impact on multi-core CPUs we need to take a closer look at what it's doing behind the scenes.

Click here to view the article.
 

Alaric

New Member
Joined
Dec 4, 2011
Location
Satan's Colon, US
My daughter will be a happy camper when she reads this. She's getting my Vishera rig. Except now I have to buy her a better graphics card. LOL
 

AnubisOne

Member
Joined
Dec 3, 2012
Location
Cincinnati, OH
This was a great article to read. Glad to hear my FX CPU will still be able to game on, possibly better! Can't wait to see what it can do with DX 12.
 

trents

Senior Member
Joined
Dec 27, 2008
Does this apply to those older Nvidia and AMD GPUs that are DX11 natively but through API magic are made DX12 compatible?
 

Johan45

Benching Team Leader Super Moderator
Joined
Dec 19, 2012
That I don't know Trents but I do know my 770s aren't on Nvidias list for DX12 cards. Not sure if it was intentional or oversight. Seems like everything else is down to some 4xx series but I do know trying to run SLI in Win 10 is a real headache and the new Time Spy DX12 bench would crash every time. I have swapped in my 980 now.
 

trents

Senior Member
Joined
Dec 27, 2008
AMD developed a low level API to implement DirectX 12 capability or it's equivalent in pre DirectX GPUs and called it Mantel. Mantel was short lived and succeeded by Vulcan. At the time, Nvidia had an equivalent technology to Mantel but I forget what it was called. Both technologies extended backwards a generation or two in their GPU product lines. But both what AMD and Nvidia were doing then was a bridge technology as GPUs with native DirectX 12 capability were not yet out. Do either of these technologies still survive and if so, are they as good as native DirectX 12? See this: https://en.wikipedia.org/wiki/Vulkan_(API)
 

PetrolHead

Member
Joined
Sep 28, 2015
This was a great article to read. Glad to hear my FX CPU will still be able to game on, possibly better! Can't wait to see what it can do with DX 12.

Even with DX12 both your FX processors will bottleneck your GPUs to some extent. The FX-9370 used in the article was bottlenecking the GTX 980 Ti (a 12% OC resulted in ~10% gain in DX11 and ~9% gain in DX12), and here you can see an OC'd FX-6300 bottlenecking the RX 480 compared to an OC'd i7-6700K even in DX 12 games like AotS: https://www.youtube.com/watch?v=B58ciXUTlA8

Not that the FX CPUs are obsolete, and DX12 is definitely a welcome improvement (as is Vulcan), but there's no denying the FX-line is starting to feel it's age and the DX12 is not exactly a fountain of youth. More like a simple nip and tuck.
 

trents

Senior Member
Joined
Dec 27, 2008
Good read, Petro. Thanks for that link. Pretty much answers my question.