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Core i7-6500U vs Xeon E5-2670 v3


Description
The i7-6500U is based on Skylake architecture while the E5-2670 v3 is based on Haswell.

Using the multithread performance as a reference, the i7-6500U gets a score of 97.5 k points while the E5-2670 v3 gets 452.9 k points.

Summarizing, the E5-2670 v3 is 4.6 times faster than the i7-6500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
306f2
Core
Skylake-U
Haswell-EP
Architecture
Base frecuency
2.5 GHz
2.3 GHz
Boost frecuency
3.1 GHz
3.1 GHz
Socket
BGA1356
LGA 2011-3
Cores/Threads
2/4
12/24
TDP
15 W
120 W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
4096 kB
12x256 kB
Cache L3
kB
30720 kB
Date
September 2015
September 2014
Mean monothread perf.
46.25k points
36.41k points
Mean multithread perf.
97.52k points
452.9k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-6500U
E5-2670 v3
Test#1 (Integers)
2.98k
3.52k (x1.18)
Test#2 (FP)
12.19k
8.68k (x0.71)
Test#3 (Generic, ZIP)
3.91k
2.83k (x0.72)
Test#1 (Memory)
5.3k
3.13k (x0.59)
TOTAL
24.37k
18.17k (x0.75)

Multithread

i7-6500U

E5-2670 v3
Test#1 (Integers)
6.1k
32.7k (x5.36)
Test#2 (FP)
28.73k
105.18k (x3.66)
Test#3 (Generic, ZIP)
9.56k
35.18k (x3.68)
Test#1 (Memory)
6.71k
9.54k (x1.42)
TOTAL
51.09k
182.59k (x3.57)

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
i7-6500U
E5-2670 v3
Test#1 (Integers)
11.11k
11.08k (x1)
Test#2 (FP)
15.97k
9.57k (x0.6)
Test#3 (Generic, ZIP)
4.25k
3.18k (x0.75)
Test#1 (Memory)
5.66k
3.28k (x0.58)
TOTAL
36.99k
27.11k (x0.73)

Multithread

i7-6500U

E5-2670 v3
Test#1 (Integers)
23.1k
139.07k (x6.02)
Test#2 (FP)
36.73k
133.47k (x3.63)
Test#3 (Generic, ZIP)
9.99k
46.6k (x4.66)
Test#1 (Memory)
7k
6.65k (x0.95)
TOTAL
76.82k
325.78k (x4.24)

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
i7-6500U
E5-2670 v3
Test#1 (Integers)
11.09k
11.18k (x1.01)
Test#2 (FP)
17.1k
10.06k (x0.59)
Test#3 (Generic, ZIP)
4.12k
3.21k (x0.78)
Test#1 (Memory)
5.58k
3.12k (x0.56)
TOTAL
37.9k
27.57k (x0.73)

Multithread

i7-6500U

E5-2670 v3
Test#1 (Integers)
23.3k
140.98k (x6.05)
Test#2 (FP)
38.52k
145.37k (x3.77)
Test#3 (Generic, ZIP)
9.95k
45.62k (x4.58)
Test#1 (Memory)
6.95k
6.75k (x0.97)
TOTAL
78.72k
338.73k (x4.3)

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
i7-6500U
E5-2670 v3
Test#1 (Integers)
19.47k
18.62k (x0.96)
Test#2 (FP)
17.58k
10.49k (x0.6)
Test#3 (Generic, ZIP)
4.05k
4.04k (x1)
Test#1 (Memory)
5.15k
3.26k (x0.63)
TOTAL
46.25k
36.41k (x0.79)

Multithread

i7-6500U

E5-2670 v3
Test#1 (Integers)
42.05k
236.25k (x5.62)
Test#2 (FP)
40.2k
151.05k (x3.76)
Test#3 (Generic, ZIP)
9.4k
58.9k (x6.27)
Test#1 (Memory)
5.86k
6.7k (x1.14)
TOTAL
97.52k
452.9k (x4.64)

Performance/W
i7-6500U
E5-2670 v3
Test#1 (Integers)
2803 points/W
1969 points/W
Test#2 (FP)
2680 points/W
1259 points/W
Test#3 (Generic, ZIP)
626 points/W
491 points/W
Test#1 (Memory)
391 points/W
56 points/W
TOTAL
6501 points/W
3774 points/W

Performance/GHz
i7-6500U
E5-2670 v3
Test#1 (Integers)
6279 points/GHz
6006 points/GHz
Test#2 (FP)
5672 points/GHz
3385 points/GHz
Test#3 (Generic, ZIP)
1305 points/GHz
1303 points/GHz
Test#1 (Memory)
1662 points/GHz
1052 points/GHz
TOTAL
14918 points/GHz
11745 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