When to expect 8MB L3 cache on 15" Haswell Retina MacBook

[vpro]

Should it be a couple months or a couple weeks wait until they do a spec bump like they always seem to do, will we see a 2.7Ghz and 2.8Ghz BTO with 8MB L3 cache very soon?

 

[AlecMyrddyn]

Should it be a couple months or a couple weeks wait until they do a spec bump like they always seem to do, will we see a 2.7Ghz and 2.8Ghz BTO with 8MB L3 cache very soon?

It'll have to be after Intel is makes a 47 TDP Quad Core i7 with Iris Pro that has an 8MB cache...

Not seeing one yet: http://ark.intel.com/search/advance...™ Pro graphics 5200&MaxTDPMin=47&MaxTDPMax=47

 

[pixpixpix]

Perhaps the 6MB L3 is not that important a difference.

Unlike previous eDRAM implementations in game consoles, Crystalwell is true 4th level cache in the memory hierarchy. It acts as a victim buffer to the L3 cache, meaning anything evicted from L3 cache immediately goes into the L4 cache. Both CPU and GPU requests are cached. The cache can dynamically allocate its partitioning between CPU and GPU use. If you don’t use the GPU at all (e.g. discrete GPU installed), Crystalwell will still work on caching CPU requests. That’s right, Haswell CPUs equipped with Crystalwell effectively have a 128MB L4 cache.

Intel Iris Pro 5200 Graphics Review: Core i7-4950HQ Tested

 

[vpro]

Thanks so much everyone. ^_^