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Xeon E5-2651 v2 vs Core 2 Quad Q6700


Description
The E5-2651 v2 is based on Ivy Bridge architecture while the Q6700 is based on Core.

Using the multithread performance as a reference, the E5-2651 v2 gets a score of 415 k points while the Q6700 gets 19.8 k points.

Summarizing, the E5-2651 v2 is 21 times faster than the Q6700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
6fb
Core
Ivy Bridge-EP
Kentsfield
Architecture
Base frecuency
1.8 GHz
2.666 GHz
Boost frecuency
2.2 GHz
2.666 GHz
Socket
LGA 2011
LGA 775
Cores/Threads
12/24
4/4
TDP
W
95 W
Cache L1 (d+i)
12x32+12x32 kB
4x32+4x32 kB
Cache L2
12x256 kB
8192 kB
Cache L3
30720 kB
kB
Date
October 2013
April 2007
Mean monothread perf.
17.75k points
10.05k points
Mean multithread perf.
426.18k points
19.77k 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
Q6700
Test#1 (Integers)
6.75k
3.06k (x0.45)
Test#2 (FP)
6.05k
2.74k (x0.45)
Test#3 (Generic, ZIP)
2.61k
2.56k (x0.98)
Test#1 (Memory)
2.26k
1.68k (x0.74)
TOTAL
17.68k
10.05k (x0.57)

Multithread

E5-2651 v2

Q6700
Test#1 (Integers)
168.18k
7.28k (x0.04)
Test#2 (FP)
159.6k
5.83k (x0.04)
Test#3 (Generic, ZIP)
77.04k
5.13k (x0.07)
Test#1 (Memory)
10.19k
1.53k (x0.15)
TOTAL
415.01k
19.77k (x0.05)

Performance/W
E5-2651 v2
Q6700
Test#1 (Integers)