Xeon E5-4640 vs E5-2651 v2
Description
The E5-4640 is based on Sandy Bridge architecture while the E5-2651 v2 is based on Ivy Bridge.
Using the multithread performance as a reference, the E5-4640 gets a score of 610.2 k points while the E5-2651 v2 gets 426.2 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 E5-4640 gets a score of 610.2 k points while the E5-2651 v2 gets 426.2 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
206d7
306e4
Core
Sandy Bridge-EP
Ivy Bridge-EP
Base frecuency
2.4 GHz
1.8 GHz
Boost frecuency
2.8 GHz
2.2 GHz
Socket
LGA 2011
LGA 2011
Cores/Threads
8 /16
12/24
TDP
95 W
W
Cache L1 (d+i)
8x32+8x32 kB
12x32+12x32 kB
Cache L2
8x256 kB
12x256 kB
Cache L3
20480 kB
30720 kB
Date
May 2012
October 2013
Mean monothread perf.
13.88k points
17.75k points
Mean multithread perf.
610.16k points
426.18k 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
E5-4640
E5-2651 v2
Test#1 (Integers)
6.19k
6.75k (x1.09)
Test#2 (FP)
5.89k
6.05k (x1.03)
Test#3 (Generic, ZIP)
2.11k
2.61k (x1.23)
Test#1 (Memory)
2.51k
2.26k (x0.9)
TOTAL
16.7k
17.68k (x1.06)
Multithread
E5-4640
E5-2651 v2
Test#1 (Integers)
244.88k
168.18k (x0.69)
Test#2 (FP)
215.35k
159.6k (x0.74)
Test#3 (Generic, ZIP)
114.64k
77.04k (x0.67)
Test#1 (Memory)
6.76k
10.19k (x1.51)
TOTAL
581.63k
415.01k (x0.71)
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
E5-4640
E5-2651 v2
Test#1 (Integers)
5.01k
6.69k (x1.33)
Test#2 (FP)
4.5k
6.35k (x1.41)
Test#3 (Generic, ZIP)
2.18k
2.54k (x1.17)
Test#1 (Memory)
2.19k
2.17k (x0.99)
TOTAL
13.88k
17.75k (x1.28)
Multithread
E5-4640
E5-2651 v2
Test#1 (Integers)
251.29k
165.17k (x0.66)
Test#2 (FP)
236.61k
176.85k (x0.75)
Test#3 (Generic, ZIP)
114.89k
73.91k (x0.64)
Test#1 (Memory)
7.36k
10.25k (x1.39)
TOTAL
610.16k
426.18k (x0.7)
Performance/W
E5-4640
E5-2651 v2
Test#1 (Integers)
2645 points/W