Originally Posted by 8051
Um, in a quad channel setup reading and writing can be done on separate channels simultaneously.
Furthermore, your L3 cache is captive to your L4 "cache" in the sense that the L4 cache tags are stored in the L3 cache.
Techreport debunked your epeen months ago.
I am really sorry for you man. You lack an understanding of eDram or how it affects workloads. Not entirely sure what you are trying to prove either? That a 6yo chip is finally outpaced by DDR4 platforms? You are looking at AIDA which is affected by both bandwidth and clock. You are comparing a TechReport article which conveniently left the CPU at stock clock settings, stock eDram clocks and ran the crappiest RAM they could find?
Anybody with an impartial mind can look at that and say, WOW an old ass 5775C on stock settings with trash ram is keeping up with current systems.
Like I said, my friend runs a 9900K and gets one extra frame per second than me in ARMA3. We play together daily. If anybody is stretching their epeen it's you. The very fact you mention the term at all lol. You're on this board, don't own this CPU, don't have any experience with it and are here running garbage about the subject you don't understand. You don't understand what a "cache miss" is or how it is handled by either architecture.
Here is some education on the subject.
Your post to rep ratio, along with your post history should tell everyone about your intentions and lack of substance.
For everybody else that can see past the hype, actually cares to see how eDram improves IPC performance and can compare apples to apples. Here's a bench for you. 2 members of this board are in the top 10, on significantly lower core clocks than anything around. (Now don't go looking for oranges trying to compare 6 and 8 core CPUS to quad cores.) Rather, imagine an 8 core eDram equipped CPU and what it would do to a DDR4 system.
CLEARLY there is a huge advantage to eDram style caching compared to having to run through the mem controller out to the DDR for any CPU utilizing it. Sure DDR has got faster over the last few years. It took more than 6y to get on par. I'm not sure any 5775C owner is surprised by this or disappointed by their purchases. You on the other hand do seem particularly sour to keep coming back to this thread. If anything this has made my epeen grow for making such a smart purchase way back when.
If anything we all hope to see an 8core CPU with eDram style caching which would make for a monumental leap in performance over existing architecture worth upgrading to.
If your intention is to somehow say that eDRAM is irrelevant in improving IPC you're delusional as that is precisely where both AMD and Intel are headed in advancing IPC performance adding more and more caching closer to the core.
Now imagine you're this guy. You're mostly into gaming, bought a 5820K, spent a ton of money for an x99 board + DDR4 and later found out that your 6 core is outpaced by an older quad core out of an iMac, and can't compete with the 6700K, 7700K or the 8700K while a on old ass 5775C on an old ass x97 on DDR3 is running circles around you in all that is relevant. So he is here talking trash trying to make himself feel better. https://www.overclock.net/forum/5-in...l#post23601301