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Core i7-8650U vs Xeon E5-1660 v3


Description
The i7-8650U is based on Kaby Lake architecture while the E5-1660 v3 is based on Haswell.

Using the multithread performance as a reference, the i7-8650U gets a score of 173.5 k points while the E5-1660 v3 gets 353 k points.

Summarizing, the E5-1660 v3 is 2 times faster than the i7-8650U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
306f2
Core
Kaby Lake-R
Haswell-EP
Architecture
Base frecuency
1.9 GHz
3 GHz
Boost frecuency
4.2 GHz
3.5 GHz
Socket
BGA 1356
LGA 2011-3
Cores/Threads
4/8
8/16
TDP
15 W
140 W
Cache L1 (d+i)
4x32+4x32 kB
8x32+8x32 kB
Cache L2
4x256 kB
8x256 kB
Cache L3
8192 kB
20480 kB
Date
August 2017
September 2014
Mean monothread perf.
55.86k points
41.31k points
Mean multithread perf.
173.49k points
352.96k points

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
i7-8650U
E5-1660 v3
Test#1 (Integers)
21.61k
20.92k (x0.97)
Test#2 (FP)
19.69k
11.87k (x0.6)
Test#3 (Generic, ZIP)
4.61k
4.67k (x1.01)
Test#1 (Memory)
9.95k
3.85k (x0.39)
TOTAL
55.86k
41.31k (x0.74)

Multithread

i7-8650U

E5-1660 v3
Test#1 (Integers)
78.38k
174.59k (x2.23)
Test#2 (FP)
72.02k
116.47k (x1.62)
Test#3 (Generic, ZIP)
16.95k
44.79k (x2.64)
Test#1 (Memory)
6.15k
17.1k (x2.78)
TOTAL
173.49k
352.96k (x2.03)

Performance/W
i7-8650U
E5-1660 v3
Test#1 (Integers)
5225 points/W
1247 points/W
Test#2 (FP)
4802 points/W
832 points/W
Test#3 (Generic, ZIP)
1130 points/W
320 points/W
Test#1 (Memory)
410 points/W
122 points/W
TOTAL
11566 points/W
2521 points/W

Performance/GHz
i7-8650U
E5-1660 v3
Test#1 (Integers)
5146 points/GHz
5977 points/GHz
Test#2 (FP)
4689 points/GHz
3391 points/GHz
Test#3 (Generic, ZIP)
1097 points/GHz
1333 points/GHz
Test#1 (Memory)
2368 points/GHz
1101 points/GHz
TOTAL
13300 points/GHz
11802 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