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Those are nice chips, yeah. Have you tried out any of the new DDR4 CPUs? I'm very curious as to how the combination of higher memory bandwidth and higher memory
by semi-extrinsic 12y ago
Those are nice chips, yeah. Have you tried out any of the new DDR4 CPUs? I'm very curious as to how the combination of higher memory bandwidth and higher memory latency affects real-world applications. My first guess is that it turns out the same as DDR3-1866. Anyone benched it?
- DiabloD3 12y agoI have DDR3-2133 in my workstation now. The new DDR4-2133 won't be any faster.
- semi-extrinsic 12y agoBut will it be slower for real-world applications? I've seen numbers indicating a ~ 10% worse memory latency. Don't know how that will be felt.
- DiabloD3 12y agoDDR4 in of itself will not perform slower in memory latency in any usefully measurable way. Memory latency in the real world is almost entirely governed by the pre-fetch engine in the CPU (which exists to hide the fact how slow system RAM is to begin with). I would like to see a test between the Haswell E5v3s that support both DDR3 and DDR4 and see what the real world difference is on that specific implementation (which could not be generalized to other implementations of memory controllers by other vendors).