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Pentium G850 vs Xeon E5-2651 v2


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

Using the multithread performance as a reference, the G850 gets a score of 40.5 k points while the E5-2651 v2 gets 415 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
206a7
306e4
Core
Sandy Bridge
Ivy Bridge-EP
Architecture
Base frecuency
2.9 GHz
1.8 GHz
Boost frecuency
2.9 GHz
2.2 GHz
Socket
LGA 1155
LGA 2011
Cores/Threads
2/2
12/24
TDP
65 W
W
Cache L1 (d+i)
32+32 kB
12x32+12x32 kB
Cache L2
256 kB
12x256 kB
Cache L3
3072 kB
30720 kB
Date
May 2012
October 2013
Mean monothread perf.
21.85k points
17.75k points
Mean multithread perf.
40.5k 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
G850
E5-2651 v2
Test#1 (Integers)
8.77k
6.75k (x0.77)
Test#2 (FP)
7.08k
6.05k (x0.86)
Test#3 (Generic, ZIP)
3.72k
2.61k (x0.7)
Test#1 (Memory)
2.28k
2.26k (x0.99)
TOTAL
21.85k
17.68k (x0.81)

Multithread

G850

E5-2651 v2
Test#1 (Integers)
17.5k
168.18k (x9.61)
Test#2 (FP)
13.48k
159.6k (x11.84)
Test#3 (Generic, ZIP)
7.32k
77.04k (x10.52)
Test#1 (Memory)
2.19k
10.19k (x4.64)
TOTAL
40.5k
415.01k (x10.25)

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