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Virtual CPU Version 2.5 vs Xeon E5-2651 v2


Description
The Version 2.5 is based on - architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the Version 2.5 gets a score of 85.7 k points while the E5-2651 v2 gets 415 k points.

Summarizing, the E5-2651 v2 is 4.8 times faster than the Version 2.5. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
663
306e4
Core
-
Ivy Bridge-EP
Architecture
-
Base frecuency
4.2 GHz
1.8 GHz
Boost frecuency
4.2 GHz
2.2 GHz
Socket
-
LGA 2011
Cores/Threads
2/2
12/24
TDP
- W
W
Cache L1 (d+i)
- kB
12x32+12x32 kB
Cache L2
- kB
12x256 kB
Cache L3
- kB
30720 kB
Date
-
October 2013
Mean monothread perf.
56.16k points
17.75k points
Mean multithread perf.
85.75k 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
Version 2.5
E5-2651 v2
Test#1 (Integers)
15.7k
6.75k (x0.43)
Test#2 (FP)
22.8k
6.05k (x0.27)
Test#3 (Generic, ZIP)
5.61k
2.61k (x0.46)
Test#1 (Memory)
12.05k
2.26k (x0.19)
TOTAL
56.16k
17.68k (x0.31)

Multithread

Version 2.5

E5-2651 v2
Test#1 (Integers)
28.49k
168.18k (x5.9)
Test#2 (FP)
37.67k
159.6k (x4.24)
Test#3 (Generic, ZIP)
10.09k
77.04k (x7.63)
Test#1 (Memory)
9.5k
10.19k (x1.07)
TOTAL
85.75k
415.01k (x4.84)

Performance/W
Version 2.5
E5-2651 v2
Test#1 (Integers)