| | | | | | |

Core i7-7700 vs Xeon E5-2651 v2


Description
The i7-7700 is based on Kaby Lake architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-7700 gets a score of 200.1 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the E5-2651 v2 is 2.1 times faster than the i7-7700 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
306e4
Core
Kaby Lake-S
Ivy Bridge-EP
Architecture
Base frecuency
3.6 GHz
1.8 GHz
Boost frecuency
4.2 GHz
2.2 GHz
Socket
LGA 1151
LGA 2011
Cores/Threads
4/8
12/24
TDP
65 W
W
Cache L1 (d+i)
32+32 kB
12x32+12x32 kB
Cache L2
256 kB
12x256 kB
Cache L3
8192 kB
30720 kB
Date
September 2016
October 2013
Mean monothread perf.
67.33k points
17.75k points
Mean multithread perf.
257.52k 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
i7-7700
E5-2651 v2
Test#1 (Integers)
15.33k
6.75k (x0.44)
Test#2 (FP)
21.94k
6.05k (x0.28)
Test#3 (Generic, ZIP)
5.85k
2.61k (x0.45)
Test#1 (Memory)
12.52k
2.26k (x0.18)
TOTAL
55.64k
17.68k (x0.32)

Multithread

i7-7700

E5-2651 v2
Test#1 (Integers)
61.73k
168.18k (x2.72)
Test#2 (FP)
99.91k
159.6k (x1.6)
Test#3 (Generic, ZIP)
27.03k
77.04k (x2.85)
Test#1 (Memory)
9.28k
10.19k (x1.1)
TOTAL
197.96k
415.01k (x2.1)

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
i7-7700
E5-2651 v2
Test#1 (Integers)
15.34k
6.69k (x0.44)
Test#2 (FP)
23.41k
6.35k (x0.27)
Test#3 (Generic, ZIP)
5.87k
2.54k (x0.43)
Test#1 (Memory)
11.07k
2.17k (x0.2)
TOTAL
55.69k
17.75k (x0.32)

Multithread

i7-7700

E5-2651 v2
Test#1 (Integers)
62.68k
165.17k (x2.64)
Test#2 (FP)
105.24k
176.85k (x1.68)
Test#3 (Generic, ZIP)
26.35k
73.91k (x2.8)
Test#1 (Memory)
5.79k
10.25k (x1.77)
TOTAL
200.07k
426.18k (x2.13)

Performance/W
i7-7700
E5-2651 v2
Test#1 (Integers)
964 points/W