only 400mhz tho? not much good for cache then is it.....?

This sounds like a potentially good technology for L3 cache...

So the "official" name is FB-RAM? No, that won't cause any confusion.

5Mb = 625KB? Are computer engineers besides hard drive makers ignoring binary these days too?

Haven't we been being told every year about how some amazing new technology is being researched that will revolutionize cache performance or main memory performance?

Besides I thought optical processors were the future.

Hmm, I'm thinking interleaved access, RAID = Redundant Array of Inexpensive Dram. ;-)

400MHz LOL (400Mbps x bus width=bandwidth)

Sounds better for low power devices eg. system-on-a-chip, PDA, phone, GPS, set-top-box, integrated GPU, ??? Could replace NOR FLASH for program execution if you handle or don't care about the volatility (NAND FLASH used for long term data storage).

32MB of L3 cache (51.2sq.mm) in similar space of 4MB L2 (?sq.mm, 1/3*143=47.7) sounds great. Need at least 4 channel x 128b @ 400MHz for dual-core. AMD need better cache (L1<->L2<->main memory), 256bit wide data paths and 4issue core (similar due in 7 to 18 months time).

On-chip Cache is also about parallism. Access local data/instruction while another processor/core/thread is accessing external memory.

Why do people only see the CPU as the only possible solution for ZRAM? It doesnt take much logic to see it sucks for the CPU, but got great potential in other areas.

ZRAM for L2/L3 cache? Ye right and 4x4 is powerefficient.