SiSoft Sandra 2009 - Processor	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 results are best.

SiSoft Sandra 2009 v15.72 - Processor Processor Arithmetic Dhrystone ALU: (GIPS) Ranking Intel Core i7 920 68.25 Intel Core 2 Duo E8500 24.86 Intel Core 2 Duo E8400 23.56 AMD Phenom II X4 955 Black Edition 43.7 AMD Phenom II X3 720 Black Edition (DDR2) 28.64 AMD Phenom II X3 720 Black Edition (DDR3) 28.7 AMD Phenom II X2 550 Black Edition 21.26 AMD Athlon II X2 250 20.52 Processor Arithmetic Whetstone iSSE3: (Gflops) Ranking Intel Core i7 920 60.22 Intel Core 2 Duo E8500 23.41 Intel Core 2 Duo E8400 22.17 AMD Phenom II X4 955 Black Edition 42.17 AMD Phenom II X3 720 Black Edition (DDR2) 27.64 AMD Phenom II X3 720 Black Edition (DDR3) 27.9 AMD Phenom II X2 550 Black Edition 20.47 AMD Athlon II X2 250 19.81 Processor Multi-Media Int x8 iSSE3: (Mpixels/s) Ranking Intel Core i7 920 119.35 Intel Core 2 Duo E8500 57.08 Intel Core 2 Duo E8400 54.17 AMD Phenom II X4 955 Black Edition 125.63 AMD Phenom II X3 720 Black Edition (DDR2) 81.85 AMD Phenom II X3 720 Black Edition (DDR3) 81.92 AMD Phenom II X2 550 Black Edition 59.87 AMD Athlon II X2 250 57.93 Processor Multi-Media Float x4 iSSE2: (Mpixels/s) Ranking Intel Core i7 920 95.4 Intel Core 2 Duo E8500 32.83 Intel Core 2 Duo E8400 31.22 AMD Phenom II X4 955 Black Edition 55 AMD Phenom II X3 720 Black Edition (DDR2) 36.04 AMD Phenom II X3 720 Black Edition (DDR3) 36.08 AMD Phenom II X2 550 Black Edition 26.67 AMD Athlon II X2 250 25.8 Processor Multi-Media Float x2 iSSE2: (Mpixels/s) Ranking Intel Core i7 920 49.63 Intel Core 2 Duo E8500 16.63 Intel Core 2 Duo E8400 15.76 AMD Phenom II X4 955 Black Edition 29.99 AMD Phenom II X3 720 Black Edition (DDR2) 19.68 AMD Phenom II X3 720 Black Edition (DDR3) 19.68 AMD Phenom II X2 550 Black Edition 14.54 AMD Athlon II X2 250 14.07

SiSoft Sandra's raw mathematical benchmarks show that the Athlon II X2 250 is architecturally behind the Phenom II X2 550 BE. Both of these CPUs are out gunned by the Intel Core 2 Duo E8400 and E8500 processors.

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 Multicore Efficiency Bandwidth: (GB/s) Ranking Intel Core i7 920 30.51 Intel Core 2 Duo E8500 9.57 Intel Core 2 Duo E8400 9.11 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 X2 250 3.06 Multicore Efficiency Latency: (ns) Ranking Intel Core i7 920 17 Intel Core 2 Duo E8500 42 Intel Core 2 Duo E8400 44 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 X2 250 91 Memory Bandwidth Int iSSE2: (GB/s) Ranking Intel Core i7 920 18.86 Intel Core 2 Duo E8500 6.77 Intel Core 2 Duo E8400 7.26 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 X2 250 10.25 Memory Bandwidth Float iSSE2: (GB/s) Ranking Intel Core i7 920 18.86 Intel Core 2 Duo E8500 6.65 Intel Core 2 Duo E8400 7.27 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 X2 250 10.25 Memory Latency (Random): (ns) Ranking Intel Core i7 920 81 Intel Core 2 Duo E8500 86 Intel Core 2 Duo E8400 77 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 X2 250 85 Memory Latency (Linear): (ns) Ranking Intel Core i7 920 9 Intel Core 2 Duo E8500 12 Intel Core 2 Duo E8400 11 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 X2 250 15

The Athlon II X2 250's on-die memory controller isn't the world's fastest, but HyperTransport still does a better job of providing memory bandwidth than the FSB that the Core 2 Duo processors have to rely on for memory access.