480 only having 4 ACE's hurting it? Doesn't see the Fiji gains.
Forgot where I read it, but someone said 480 has 8 ACEs, the 2 HWS have 2-ACEs each.
Wish I could remember where I read it, so I could link you a more technical explanation haha.
Isn't that still 4?
2 HW * 2 ACE each = 4.
A GPU that supports asynchronous compute can use multiple command queues and execute these queues simultaneously, rather than switching between graphics and compute workloads. AMD supports this functionality via its Asynchronous Compute Engines (ACE) and HWS blocks on Fiji.
Asynchronous computing is, in a very real sense, GCN’s secret weapon. While every GCN-class GPU since the original HD 7970 can use it, AMD quadrupled the number of ACEs per GPU when it built Hawaii, then modified the design again with Fiji. Where the R9 290 and 290X use eight ACEs, Fiji has four ACEs and two HWS units. Each HWS can perform the work of two ACEs and they appear to be capable of additional (but as-yet unknown) work as well.
Oh Lord. If your system isn't any good; I'm in a WORLD of trouble with mine.😀😎I wonder if my system will be any good with this benchmark.
Guess I'l have to try it out when I get home.
https://tpucdn.com/reviews/AMD/RX_480/images/perfrel_1600_900.png
R9 280X = 68%
GTX 960 = 59%
Now here , R9 280X is slower than GTX 960 ?
Well... nope.Maxwell 2 chips should be able to do some form of async compute, iirc. But not Maxwell 1.
http://wccftech.com/nvidia-amd-directx-12-graphic-card-list-features-explained/4/
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1080 gain with Async is not massively off the 480 gain
http://www.pcper.com/reviews/Graphi...Looking-DX12-Asynchronous-Compute-Performance
So now we know what to expect from neutral titles. 🙂