Core i7-640LM vs Xeon E5-2651 v2
Description
The i7-640LM is based on Westmere architecture while the E5-2651 v2 is based on Ivy Bridge.
Using the multithread performance as a reference, the i7-640LM gets a score of 31.7 k points while the E5-2651 v2 gets 415 k points.
Summarizing, the E5-2651 v2 is 13.1 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-640LM gets a score of 31.7 k points while the E5-2651 v2 gets 415 k points.
Summarizing, the E5-2651 v2 is 13.1 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
20655
306e4
Core
Calpella
Ivy Bridge-EP
Base frecuency
2.133 GHz
1.8 GHz
Boost frecuency
2.667 GHz
2.2 GHz
Socket
BGA1288
LGA 2011
Cores/Threads
2/4
12/24
TDP
25 W
W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
2x256 kB
12x256 kB
Cache L3
4096 kB
30720 kB
Date
January 2010
October 2013
Mean monothread perf.
16.35k points
17.75k points
Mean multithread perf.
31.74k 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
i7-640LM
E5-2651 v2
Test#1 (Integers)
7.01k
6.75k (x0.96)
Test#2 (FP)
4.58k
6.05k (x1.32)
Test#3 (Generic, ZIP)
2.73k
2.61k (x0.96)
Test#1 (Memory)
2.03k
2.26k (x1.11)
TOTAL
16.35k
17.68k (x1.08)
Multithread
i7-640LM
E5-2651 v2
Test#1 (Integers)
12.93k
168.18k (x13)
Test#2 (FP)
10.21k
159.6k (x15.63)
Test#3 (Generic, ZIP)
6.22k
77.04k (x12.38)
Test#1 (Memory)
2.37k
10.19k (x4.31)
TOTAL
31.74k
415.01k (x13.08)
Performance/W
i7-640LM
E5-2651 v2
Test#1 (Integers)
517 points/W