Intel Nehalem-EP处理器首发深度评测

2009年03月31日00:00 IT168网站原创作者：IT168评测中心盘骏刘策编辑：盘骏评论：0条

本文Tag：处理器/CPU 四核 1U服务器 X86服务器至强/Xeon 多核 45纳米 DDR3

Intel Nehalem-EP Xeon X5570 2.93GHz without SMT

ScienceMark Membench
厂商	Intel	Intel
产品型号	Nehalem-EP Intel Gainestown Xeon X5570 2.93GHz	Nehalem-EP Intel Gainestown Xeon X5570 2.93GHz 无超线程
内存技术参数	4GB R-ECC DDR3-1333 SDRAM x6	4GB R-ECC DDR3-1333 SDRAM x6
L1带宽(MB/s)	47880.48	47880.48
L2带宽(MB/s)	19604.64	19584.61
内存带宽(MB/s)	10116.61	10160.28
L1 Cache Latency(ns)
32 Bytes Stride	2 cycles 0.68 ns	2 cycles 0.68 ns
L1 Algorithm Bandwidth(MB/s)
Compiler	43072.25	42995.27
REP MOVSD	43467.25	43441.08
ALU Reg Copy	11949.09	12074.72
MMX Reg Copy	22537.36	23200.89
SSE PAlign	47773.13	47833.39
SSE2 PAlign	47880.48	47880.48
L2 Cache Latency(ns)
4 Bytes Stride	3 cycles 1.02ns	3 cycles 1.02 ns
16 Bytes Stride	3 cycles 1.02ns	3 cycles 1.02 ns
64 Bytes Stride	8 cycles 2.73ns	8 cycles 2.73 ns
256 Bytes Stride	8 cycles 2.73ns	8 cycles 2.73s
512 Bytes Stride	7 cycles 2.39 ns	7 cycles 2.39 ns
L2 Algorithm Bandwidth(MB/s)
Compiler	18039.64	18129.79
REP MOVSD	19604.64	19584.61
ALU Reg Copy	8788.90	8788.33
MMX Reg Copy	14083.83	14119.38
SSE PAlign	18731.92	18711.03
SSE2 PAlign	5833.93	18711.03
Memory Latency(ns)
4 Bytes Stride	3 cycles 1.02	3 cycles 1.02
16 Bytes Stride	5 cycles 1.70	5 cycles 1.70
64 Bytes Stride	22 cycles 7.50	22 cycles 7.50
256 Bytes Stride	102 cycles 34.77	103 cycles 35.11
512 Bytes Stride	117 cycles 39.88	116 cycles 39.54
Memory Algorithm Bandwidth(MB/s)
Compiler	9210.17	9173.01
REP MOVSD	10116.61	10160.28
ALU Reg Copy	8156.00	8207.56
MMX Reg Copy	9306.18	9366.28
MMX Reg 3dNow	-	-
MMX Reg SSE	8781.26	8829.73
SSE PAlign	8580.24	8685.93
SSE PAlign SSE	9524.07	9572.71
SSE2 PAlign	8560.83	8605.74
SSE2 PAlign SSE	9555.13	9625.23
MMX Block 4kb	7743.82	7776.80
MMX Block 16kb	8321.35	8383.07
SSE Block 4kb	7890.10	8011.37
SSE Block 16kb	8355.86	8367.68

　　关闭超线程之后，缓存和内存性能着微弱的提升，你不需要关闭超线程。