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Xeon E5-2651 v2 vs Pentium G850


Description
The E5-2651 v2 is based on Ivy Bridge architecture while the G850 is based on Sandy Bridge.

Using the multithread performance as a reference, the E5-2651 v2 gets a score of 415 k points while the G850 gets 40.5 k points.

Summarizing, the E5-2651 v2 is 10.2 times faster than the G850 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
206a7
Core
Ivy Bridge-EP
Sandy Bridge
Architecture
Base frecuency
1.8 GHz
2.9 GHz
Boost frecuency
2.2 GHz
2.9 GHz
Socket
LGA 2011
LGA 1155
Cores/Threads
12/24
2/2
TDP
W
65 W
Cache L1 (d+i)
12x32+12x32 kB
32+32 kB
Cache L2
12x256 kB
256 kB
Cache L3
30720 kB
3072 kB
Date
October 2013
May 2012
Mean monothread perf.
17.75k points
21.85k points
Mean multithread perf.
426.18k points
40.5k 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
G850
Test#1 (Integers)
6.75k
8.77k (x1.3)
Test#2 (FP)
6.05k
7.08k (x1.17)
Test#3 (Generic, ZIP)
2.61k
3.72k (x1.43)
Test#1 (Memory)
2.26k
2.28k (x1.01)
TOTAL
17.68k
21.85k (x1.24)

Multithread

E5-2651 v2

G850
Test#1 (Integers)
168.18k
17.5k (x0.1)
Test#2 (FP)
159.6k
13.48k (x0.08)
Test#3 (Generic, ZIP)
77.04k
7.32k (x0.1)
Test#1 (Memory)
10.19k
2.19k (x0.22)
TOTAL
415.01k
40.5k (x0.1)

Performance/W
E5-2651 v2
G850
Test#1 (Integers)