| fatslob-:O said:
BTW the eDRAM is located on the GPU not the CPU, the WII U features an MCM design and not an APU one. Oh and alot of games don't use the cpu for rendering they use the gpu if you wonder how the processor is able to keep up. The only workload that is usually assigned to the cpu is AI which is small, keeping track of game elements that doesn't have to do with rendering, and other things that is not floating point heavy. |
The 3MB L2 Cache in Espresso is IBM's own eDRAM, completely different than the eDRAM on the GPU die, manufactured by two different people. We've known that the cache is eDRAM since it was announced. IBM announced it themselves!
http://www-03.ibm.com/press/us/en/pressrelease/34683.wss
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IBM said: IBM's unique embedded DRAM, for example, is capable of feeding the multi-core processor large chunks of data to make for a smooth entertainment experience |
As for the rest, the matmul SIMD test says otherwise. Again, not wanting to start that conversation again, but it performs very well against several other more modern designs, while only using 64-bit SIMD (Paired singles, in this case, isn't "real" SIMD). That is a pure SIMD test, no help from outside sources. If a CPU had much better SIMD, and had a good enough architecture to go along with it, then that CPU should finish the test faster than others. Of course, if you use it incorrectly, it will lose a lot of performance. Many developers have never even developed for this architecture before, as obviously noted by several devs who clearly say that thay're still getting used to the architecture.
