SiSoft Sandra 2009 - Memory	Source: Sandra

Sandra is designed to test the theoretical power of a complete system and individual components. The numbers taken though are again, purely theoretical and may not represent real world performance. Higher bandwidth and lower latencies are best.

SiSoft Sandra 2009 v15.72 - Memory - Windows Vista Multicore Efficiency Bandwidth: (GB/s) Ranking Intel Core i7 920 30.51 Intel Core i5 750 13.21 Intel Core 2 Duo E8500 9.57 Intel Core 2 Duo E8400 9.11 AMD Phenom II X4 965 Black Edition (140W) 4.7 AMD Phenom II X4 955 Black Edition 4.75 AMD Phenom II X3 720 Black Edition (DDR2) 3.67 AMD Phenom II X3 720 Black Edition (DDR3) 3.72 AMD Phenom II X2 550 Black Edition 3.86 AMD Athlon II X4 620 3.23 AMD Athlon II X3 435 2.98 AMD Athlon II X2 250 3.06 AMD Athlon II X2 240e 3.09 Multicore Efficiency Latency: (ns) Ranking Intel Core i7 920 17 Intel Core i5 750 60 Intel Core 2 Duo E8500 42 Intel Core 2 Duo E8400 44 AMD Phenom II X4 965 Black Edition (140W) 95 AMD Phenom II X4 955 Black Edition 89 AMD Phenom II X3 720 Black Edition (DDR2) 83 AMD Phenom II X3 720 Black Edition (DDR3) 80 AMD Phenom II X2 550 Black Edition 103 AMD Athlon II X4 620 103 AMD Athlon II X3 435 81 AMD Athlon II X2 250 91 AMD Athlon II X2 240e 95 Memory Bandwidth Int iSSE2: (GB/s) Ranking Intel Core i7 920 18.86 Intel Core i5 750 16.3 Intel Core 2 Duo E8500 6.77 Intel Core 2 Duo E8400 7.26 AMD Phenom II X4 965 Black Edition (140W) 12.24 AMD Phenom II X4 955 Black Edition 12.18 AMD Phenom II X3 720 Black Edition (DDR2) 11.38 AMD Phenom II X3 720 Black Edition (DDR3) 11.45 AMD Phenom II X2 550 Black Edition 10.3 AMD Athlon II X4 620 11.23 AMD Athlon II X3 435 11.17 AMD Athlon II X2 250 10.25 AMD Athlon II X2 240e 10.23 Memory Bandwidth Float iSSE2: (GB/s) Ranking Intel Core i7 920 18.86 Intel Core i5 750 16.25 Intel Core 2 Duo E8500 6.65 Intel Core 2 Duo E8400 7.27 AMD Phenom II X4 965 Black Edition (140W) 12.2 AMD Phenom II X4 955 Black Edition 12.17 AMD Phenom II X3 720 Black Edition (DDR2) 11.41 AMD Phenom II X3 720 Black Edition (DDR3) 11.42 AMD Phenom II X2 550 Black Edition 10.26 AMD Athlon II X4 620 11.23 AMD Athlon II X3 435 11.18 AMD Athlon II X2 250 10.25 AMD Athlon II X2 240e 10.24 Memory Latency (Random): (ns) Ranking Intel Core i7 920 81 Intel Core i5 750 79 Intel Core 2 Duo E8500 86 Intel Core 2 Duo E8400 77 AMD Phenom II X4 965 Black Edition (140W) 83 AMD Phenom II X4 955 Black Edition 83 AMD Phenom II X3 720 Black Edition (DDR2) 82 AMD Phenom II X3 720 Black Edition (DDR3) 84 AMD Phenom II X2 550 Black Edition 87 AMD Athlon II X4 620 93 AMD Athlon II X3 435 92 AMD Athlon II X2 250 85 AMD Athlon II X2 240e 86 Memory Latency (Linear): (ns) Ranking Intel Core i7 920 9 Intel Core i5 750 8 Intel Core 2 Duo E8500 12 Intel Core 2 Duo E8400 11 AMD Phenom II X4 965 Black Edition (140W) 15 AMD Phenom II X4 955 Black Edition 15 AMD Phenom II X3 720 Black Edition (DDR2) 14 AMD Phenom II X3 720 Black Edition (DDR3) 15 AMD Phenom II X2 550 Black Edition 16 AMD Athlon II X4 620 13 AMD Athlon II X3 435 15 AMD Athlon II X2 250 15 AMD Athlon II X2 240e 13

The Athlon II X3 435's lack of L3 cache really comes back to haunt it in this synthetic benchmark. Memory latencies are high and bandwidth is low, both of which hurt the Athlon II X3 435's multi-threading performance.

SiSoft Sandra 2009.SP4 - Memory - Windows 7 Multicore Efficiency Bandwidth: (GB/s) Ranking Intel Core i7 920 32 Intel Core i5 750 13 Intel Core 2 Duo E8400 9 AMD Phenom II X4 965 Black Edition (140W) 4.66 AMD Athlon II X4 620 3.22 AMD Athlon II X3 435 3 AMD Athlon II X2 240e 3.1 Multicore Efficiency Latency: (ns) Ranking Intel Core i7 920 19 Intel Core i5 750 59 Intel Core 2 Duo E8400 47 AMD Phenom II X4 965 Black Edition (140W) 74 AMD Athlon II X4 620 102 AMD Athlon II X3 435 83 AMD Athlon II X2 240e 97 Memory Bandwidth Int iSSE2: (GB/s) Ranking Intel Core i7 920 18.87 Intel Core i5 750 16.6 Intel Core 2 Duo E8400 7 AMD Phenom II X4 965 Black Edition (140W) 12 AMD Athlon II X4 620 11.22 AMD Athlon II X3 435 11.16 AMD Athlon II X2 240e 10.27 Memory Bandwidth Float iSSE2: (GB/s) Ranking Intel Core i7 920 18.86 Intel Core i5 750 16.58 Intel Core 2 Duo E8400 7.1 AMD Phenom II X4 965 Black Edition (140W) 12 AMD Athlon II X4 620 11.23 AMD Athlon II X3 435 11.18 AMD Athlon II X2 240e 10.25 Memory Latency (Random): (ns) Ranking Intel Core i7 920 80 Intel Core i5 750 78 Intel Core 2 Duo E8400 88 AMD Phenom II X4 965 Black Edition (140W) 80 AMD Athlon II X4 620 93 AMD Athlon II X3 435 92 AMD Athlon II X2 240e 86 Memory Latency (Linear): (ns) Ranking Intel Core i7 920 9 Intel Core i5 750 8 Intel Core 2 Duo E8400 12 AMD Phenom II X4 965 Black Edition (140W) 14 AMD Athlon II X4 620 13 AMD Athlon II X3 435 15 AMD Athlon II X2 240e 13

Scores in Windows 7 and Windows Vista are nearly identical here, which is expected. Multicore efficiency and latency results are particularly uninspiring compared to the octo-threaded Intel Core i7 920 CPU... Muhahaha!