Xeon E5-2651 v2 vs E5-4640
Description
The E5-2651 v2 is based on Ivy Bridge architecture while the E5-4640 is based on Sandy Bridge.
Using the multithread performance as a reference, the E5-2651 v2 gets a score of 426.2 k points while the E5-4640 gets 610.2 k points.
Summarizing, the E5-4640 is 1.4 times faster than the E5-2651 v2. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the E5-2651 v2 gets a score of 426.2 k points while the E5-4640 gets 610.2 k points.
Summarizing, the E5-4640 is 1.4 times faster than the E5-2651 v2. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306e4
206d7
Core
Ivy Bridge-EP
Sandy Bridge-EP
Base frecuency
1.8 GHz
2.4 GHz
Boost frecuency
2.2 GHz
2.8 GHz
Socket
LGA 2011
LGA 2011
Cores/Threads
12/24
8 /16
TDP
W
95 W
Cache L1 (d+i)
12x32+12x32 kB
8x32+8x32 kB
Cache L2
12x256 kB
8x256 kB
Cache L3
30720 kB
20480 kB
Date
October 2013
May 2012
Mean monothread perf.
17.75k points
13.88k points
Mean multithread perf.
426.18k points
610.16k points
SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
E5-2651 v2
E5-4640
Test#1 (Integers)
6.75k
6.19k (x0.92)
Test#2 (FP)
6.05k
5.89k (x0.97)
Test#3 (Generic, ZIP)
2.61k
2.11k (x0.81)
Test#1 (Memory)
2.26k
2.51k (x1.11)
TOTAL
17.68k
16.7k (x0.94)
Multithread
E5-2651 v2
E5-4640
Test#1 (Integers)
168.18k
244.88k (x1.46)
Test#2 (FP)
159.6k
215.35k (x1.35)
Test#3 (Generic, ZIP)
77.04k
114.64k (x1.49)
Test#1 (Memory)
10.19k
6.76k (x0.66)
TOTAL
415.01k
581.63k (x1.4)
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
E5-2651 v2
E5-4640
Test#1 (Integers)
6.69k
5.01k (x0.75)
Test#2 (FP)
6.35k
4.5k (x0.71)
Test#3 (Generic, ZIP)
2.54k
2.18k (x0.86)
Test#1 (Memory)
2.17k
2.19k (x1.01)
TOTAL
17.75k
13.88k (x0.78)
Multithread
E5-2651 v2
E5-4640
Test#1 (Integers)
165.17k
251.29k (x1.52)
Test#2 (FP)
176.85k
236.61k (x1.34)
Test#3 (Generic, ZIP)
73.91k
114.89k (x1.55)
Test#1 (Memory)
10.25k
7.36k (x0.72)
TOTAL
426.18k
610.16k (x1.43)
Performance/W
E5-2651 v2
E5-4640
Test#1 (Integers)