7 Replies Latest reply on Feb 2, 2015 12:21 PM by Robert_U

    Some Graphics 5200 architecture configuration problems




      I have a CPU of i7-4850HQ, which contains Graphics 5200. I am doing experiments on it and  have some parameter problems about it.


      1. Would some one tell me what is the  max Iris™ Pro 5200  Gen7.5 frequency? 1.3 GHz or 1.2 GHz? When I compute its Theoretical peak Gflops, which should I use?

      In The Compute Architecture of  Intel® Processor Graphics Gen7.5 page 13, it writes 1.3 GHz.


      But in the following url, it writes max freq. of GPU is 1.2 GHz.

      ARK | Intel® Core™ i7-4850HQ Processor (6M Cache, up to 3.50 GHz)

      I think one of them is wrong but I don't kinow.


      2.What is the size of the L1 and L2 cache in GPU for each subslice? Would you tell me where can I get this parameters?


      3.GPU can directly read  and write from and to the EDRAM, CPU can directly access the LLC cache slice, so the CPU has faster speed to the LLC and slower speed to EDRAM, while GPU has faster speed to EDRAM and slower speed to LLC. Am I right?


      4.I read the Compute Architecture of  Intel® Processor Graphics Gen7.5 and I can get clear explanation of the GPU architecture. Would you tell me where I can get the CPU part architecture figure? Just a picture to explain the core, L1 cache, L2 cache structure clearly? Like the GPU part.


      Hope for reply

      i would appreciate it if you could help me.