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Core i7-7700K vs Xeon E5-1660 v4


Description
The i7-7700K is based on Kaby Lake architecture while the E5-1660 v4 is based on Broadwell.

Using the multithread performance as a reference, the i7-7700K gets a score of 238 k points while the E5-1660 v4 gets 320.5 k points.

Summarizing, the E5-1660 v4 is 1.3 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
406f1
Core
Kaby Lake-S
Broadwell-EP
Architecture
Base frecuency
4.2 GHz
3.2 GHz
Boost frecuency
4.5 GHz
3.8 GHz
Socket
LGA 1151
Socket 2011-3
Cores/Threads
4/8
8/16
TDP
95 W
140 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
Jun 2016

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
E5-1660 v4
Test#1 (Integers)
17549
12411 (-29.27%)
Test#2 (FP)
27822
17229 (-38.08%)
Test#3 (Generic, ZIP)
6796
4889 (-28.06%)
Test#1 (Memory)
14832
3073 (-79.28%)
TOTAL
66999
37602 (-43.88%)

Multithread

i7-7700K

E5-1660 v4
Test#1 (Integers)
68395
102112 (49.30%)
Test#2 (FP)
118805
156504 (31.73%)
Test#3 (Generic, ZIP)
33336
42078 (26.22%)
Test#1 (Memory)
17434
19798 (13.56%)
TOTAL
237970
320492 (34.68%)

Performance/W
i7-7700K
E5-1660 v4
Test#1 (Integers)
720 points/W
729 points/W
Test#2 (FP)
1251 points/W
1118 points/W
Test#3 (Generic, ZIP)
351 points/W
301 points/W
Test#1 (Memory)
184 points/W
141 points/W
TOTAL
2505 points/W
2289 points/W

Performance/GHz
i7-7700K
E5-1660 v4
Test#1 (Integers)
3900 points/GHz
3266 points/GHz
Test#2 (FP)
6183 points/GHz
4534 points/GHz
Test#3 (Generic, ZIP)
1510 points/GHz
1286 points/GHz
Test#1 (Memory)
3296 points/GHz
809 points/GHz
TOTAL
14889 points/GHz
9895 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. 3.7.9