Processors
Intel® Processors, Tools, and Utilities
14505 Discussions

What is the L2$ and L3$ cache throughput for Nehalem?

idata
Employee
1,336 Views

Hi, I'm looking for some cache throughput information for the Nehalem cpu.

I know what the cache latency values are. Like L1$ is 4 cpu clocks, L2$ is ~10 cpu clocks, and L3$ is 35-40 cpu clocks.

But does anyone know more about the L2$ and L3$ throughput?

For instance, L1$ can feed the SSE registers 128-bits every cpu clock cycle.

How about for the L2$ feeding the L1$? I know that the L2$ feeds the L1$ 64-bytes at a time. But how many cpu clock cycles are between

each sucessive cacheline feed? Is it 2 cpu clocks?

Then what about the L3$ feeding the L2$? About how many cpu clocks are between each sucessive cacheline feed? (I have no idea here)

Thanks for any help or pointers!

0 Kudos
0 Replies
Reply