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Xeon E5-2651 v2 vs E5-2680 v2


Description
Both models E5-2651 v2 and E5-2680 v2 are based on Ivy Bridge architecture.

"Ivy Bridge is the last Intel microarchitecture for which there is official driver support for Windows XP . It is made under 22 nm Tri-Gate transistor (""3D"") technology and is basically a Sandy Bridge shrink. It has PCI Express 3.0 support and RdRand instruction for security tasks."

Using the multithread performance as a reference, the E5-2651 v2 gets a score of 426.2 k points while the E5-2680 v2 gets 551.1 k points.

Summarizing, the E5-2680 v2 is 1.3 times faster than the E5-2651 v2. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
306e4
Core
Ivy Bridge-EP
Ivy Bridge-EP
Architecture
Base frecuency
1.8 GHz
2.8 GHz
Boost frecuency
2.2 GHz
3.6 GHz
Socket
LGA 2011
LGA 2011
Cores/Threads
12/24
10 /20
TDP
W
115 W
Cache L1 (d+i)
12x32+12x32 kB
10x32+10x32 kB
Cache L2
12x256 kB
10x256 kB
Cache L3
30720 kB
25600 kB
Date
October 2013
September 2013
Mean monothread perf.
17.75k points
28.23k points
Mean multithread perf.
426.18k points
551.1k 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
E5-2680 v2
Test#1 (Integers)
6.75k
11.96k (x1.77)
Test#2 (FP)
6.05k
10.73k (x1.77)
Test#3 (Generic, ZIP)
2.61k
4.59k (x1.76)
Test#1 (Memory)
2.26k
4.31k (x1.9)
TOTAL
17.68k
31.6k (x1.79)

Multithread

E5-2651 v2

E5-2680 v2
Test#1 (Integers)
168.18k
218.24k (x1.3)
Test#2 (FP)
159.6k
206.92k (x1.3)
Test#3 (Generic, ZIP)
77.04k
100.37k (x1.3)
Test#1 (Memory)
10.19k
11.45k (x1.12)
TOTAL
415.01k
536.99k (x1.29)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
E5-2651 v2
E5-2680 v2
Test#1 (Integers)
6.69k
10.55k (x1.58)
Test#2 (FP)
6.35k
10.02k (x1.58)
Test#3 (Generic, ZIP)
2.54k
3.99k (x1.57)
Test#1 (Memory)
2.17k
3.66k (x1.69)
TOTAL
17.75k
28.23k (x1.59)

Multithread

E5-2651 v2

E5-2680 v2
Test#1 (Integers)
165.17k
215.04k (x1.3)
Test#2 (FP)
176.85k
230.43k (x1.3)
Test#3 (Generic, ZIP)
73.91k
96.87k (x1.31)
Test#1 (Memory)
10.25k
8.76k (x0.85)
TOTAL
426.18k
551.1k (x1.29)

Performance/W
E5-2651 v2
E5-2680 v2
Test#1 (Integers)