Where are you getting that from?? What makes you think Sony's GPU is a year older architecture than MS's?I just noticed that Xbone's GPU (Radeon 7790) has opencl 2.0 support vs 1.2 (Radeon 7870) in the PS4. Is that right? I think one of the main additions is support for dynamic parallelism.
AMD OpenCL 2.0 driver essentially compatible with all GCN gpu. Some of the listed compatible GPU even belong in GCN 1.0.I just noticed that Xbone's GPU (Radeon 7790) has opencl 2.0 support vs 1.2 (Radeon 7870) in the PS4. Is that right? I think one of the main additions is support for dynamic parallelism.
There are mainly articles popping up around the web with regards to this, the main points that I can gather are to do with L1 cache on each CU/SC compared to the PS4 sharing L1 between 3 CU's and the Durango leaks that show 4 SMIDS each SMID has 4 VSP's with each VSP able to do 4 threads which is more akin to the later GFX cards (the SMID details are in the leaked SDK which basically justifies alot of the original Durango leak, esp. with regards to the CU/SC.
I have not seen anything to do with opencl support for either console, but the whole dual pipe and 2 graphics command processors is leading many to believe you will be able to saturate all CU's instead of waiting for them to finish (like on PS4) even if the current task is only using 2 CU's
PS. Don't shoot the messenger
http://www.amd.com/Documents/GCN_Architecture_whitepaper.pdfThe evidence is based off Durango and the leaked SDK, I should point out I am only writing what conclusions others have come up with, it's not necessarily my own
Sorry I am not explaing it properly
I was trying to say that if the graphics command processor issues a task then it would use X amount of CU's to complete the task. Without 2 graphics command processors (which the PS4 does not have) you would have to wait for the single one to finish which would be wasting CU's or cycles would it not ? I am still trying to understand, apologies.
Where is this info coming from? How do you know XB1 is using 7790 and PS4 is using 7870?The Xbox 7790 is supported because it is a 7700 series card.
The PS4 7870 is supported because all 7800 and 7900 series cards were rebranded as R9 200.