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Core i7-7700K vs Xeon E5-2667 v3


Description
The i7-7700K is based on Kaby Lake architecture while the E5-2667 v3 is based on Haswell.

Using the multithread performance as a reference, the i7-7700K gets a score of 289.8 k points while the E5-2667 v3 gets 343.6 k points.

Summarizing, the E5-2667 v3 is 1.2 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
306f2
Core
Kaby Lake-S
Haswell-EP
Architecture
Base frecuency
4.2 GHz
3.2 GHz
Boost frecuency
4.5 GHz
3.6 GHz
Socket
LGA 1151
LGA 2011-3
Cores/Threads
4/8
8/16
TDP
95 W
135 W
Cache L1 (d+i)
32+32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
20480 kB
Date
September 2016
September 2014
Mean monothread perf.
76.9k points
41.36k points
Mean multithread perf.
289.82k points
343.64k points

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
i7-7700K
E5-2667 v3
Test#1 (Integers)
17.55k
13.1k (x0.75)
Test#2 (FP)
27.82k
11.91k (x0.43)
Test#3 (Generic, ZIP)
6.8k
4.83k (x0.71)
Test#1 (Memory)
14.83k
3.83k (x0.26)
TOTAL
67k
33.68k (x0.5)

Multithread

i7-7700K

E5-2667 v3
Test#1 (Integers)
68.4k
105.42k (x1.54)
Test#2 (FP)
118.8k
109.99k (x0.93)
Test#3 (Generic, ZIP)
33.34k
44.56k (x1.34)
Test#1 (Memory)
17.43k
17.7k (x1.01)
TOTAL
237.97k
277.66k (x1.17)

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-7700K
E5-2667 v3
Test#1 (Integers)
30.44k
20.99k (x0.69)
Test#2 (FP)
26.91k
11.9k (x0.44)
Test#3 (Generic, ZIP)
6.25k
4.72k (x0.76)
Test#1 (Memory)
13.3k
3.75k (x0.28)
TOTAL
76.9k
41.36k (x0.54)

Multithread

i7-7700K

E5-2667 v3
Test#1 (Integers)
127.73k
172.62k (x1.35)
Test#2 (FP)
123.68k
110.03k (x0.89)
Test#3 (Generic, ZIP)
29.34k
44.06k (x1.5)
Test#1 (Memory)
9.08k
16.93k (x1.87)
TOTAL
289.82k
343.64k (x1.19)

Performance/W
i7-7700K
E5-2667 v3
Test#1 (Integers)
1345 points/W
1279 points/W
Test#2 (FP)
1302 points/W
815 points/W
Test#3 (Generic, ZIP)
309 points/W
326 points/W
Test#1 (Memory)
96 points/W
125 points/W
TOTAL
3051 points/W
2545 points/W

Performance/GHz
i7-7700K
E5-2667 v3
Test#1 (Integers)
6765 points/GHz
5830 points/GHz
Test#2 (FP)
5981 points/GHz
3305 points/GHz
Test#3 (Generic, ZIP)
1388 points/GHz
1311 points/GHz
Test#1 (Memory)
2955 points/GHz
1043 points/GHz
TOTAL
17089 points/GHz
11489 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4