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Old 9th February 2024, 14:58   #1  |  Link
ShogoXT
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Join Date: Dec 2011
Posts: 95
BIG vs little, Intel vs AMD

In the future there will be a separation on how Intel and AMD design their CPUs. They both have completely different visions on how to scale upwards on cores.

For AMD Zen 4 and 5 will have available cacheless cores called Zen4c or Zen5c. These will STILL fully support AVX512 and be identical to normal cores just happen to take up a lot less space on the die thus can have more of them. Naturally they perform worse.

Check benchmarks for the Ryzen 8500g which I would consider this a prototype of this. Also known as Phoenix Point 2, expect to see Zen5c as Strix Point and Strix Halo.

Now for Intel it's more drastic. Their little cores for Alder Lake were upgraded to support avx2 and new instructions were added because they couldn't do avx512 anymore on the whole system. They're large p cores could, but they disabled them.

People wondered when they would return, well Intel wants to rework avx for hybrid processors, but it won't support avx512 for a long time and probably won't support current cpus. See avx10 below.

https://www.anandtech.com/show/18975...architectures-

Not only that but it seems they are separating them on the server platform. P cores for Granite Rapids and e cores for Sierra Forest. So granite maintains the only avx512.

https://www.anandtech.com/show/20034...a-forest-xeons

Meteor Lake is out now with new p and e cores for mobile only, along with a npu, new igpu with av1 encoding. No avx10. I suspect it will come with Arrow Lake on the next platform and socket 1851.

Finally both brands now have AI NPU options built in. AMD Phoenix Point and Intel Meteor Lake. Can these be used by filters and encoders eventually like opencl was? Openml does exist, I imagine it would be great for motion estimation.

Thanks guys I hope to hear from you all! Sorry for misspells I'm on my phone.
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