Xeon E5-2620 vs E5-2651 v2
Description
The E5-2620 is based on Sandy Bridge architecture while the E5-2651 v2 is based on Ivy Bridge.
Using the multithread performance as a reference, the E5-2620 gets a score of 224.7 k points while the E5-2651 v2 gets 426.2 k points.
Summarizing, the E5-2651 v2 is 1.9 times faster than the E5-2620. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the E5-2620 gets a score of 224.7 k points while the E5-2651 v2 gets 426.2 k points.
Summarizing, the E5-2651 v2 is 1.9 times faster than the E5-2620. 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 GHz
1.8 GHz
Boost frecuency
2.5 GHz
2.2 GHz
Socket
LGA 2011
LGA 2011
Cores/Threads
6/12
12/24
TDP
95 W
W
Cache L1 (d+i)
6x32+6x32 kB
12x32+12x32 kB
Cache L2
6x256 kB
12x256 kB
Cache L3
15360 kB
30720 kB
Date
March 2012
October 2013
Mean monothread perf.
18.8k points
17.75k points
Mean multithread perf.
224.7k points
426.18k points
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
E5-2620
E5-2651 v2
Test#1 (Integers)
6.95k
6.69k (x0.96)
Test#2 (FP)
6.24k
6.35k (x1.02)
Test#3 (Generic, ZIP)
3.05k
2.54k (x0.83)
Test#1 (Memory)
2.56k
2.17k (x0.85)
TOTAL
18.8k
17.75k (x0.94)
Multithread
E5-2620
E5-2651 v2
Test#1 (Integers)
90.01k
165.17k (x1.83)
Test#2 (FP)
82.43k
176.85k (x2.15)
Test#3 (Generic, ZIP)
42.59k
73.91k (x1.74)
Test#1 (Memory)
9.66k
10.25k (x1.06)
TOTAL
224.7k
426.18k (x1.9)
Performance/W
E5-2620
E5-2651 v2
Test#1 (Integers)
948 points/W