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Core i7-3687U vs Xeon E5-2670 v3


Description
The i7-3687U is based on Ivy Bridge architecture while the E5-2670 v3 is based on Haswell.

Using the multithread performance as a reference, the i7-3687U gets a score of 51 k points while the E5-2670 v3 gets 338.7 k points.

Summarizing, the E5-2670 v3 is 6.6 times faster than the i7-3687U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
306f2
Core
Ivy Bridge
Haswell-EP
Architecture
Base frecuency
2.1 GHz
2.3 GHz
Boost frecuency
3.3 GHz
3.1 GHz
Socket
BGA1023
LGA 2011-3
Cores/Threads
2 /4
12/24
TDP
17 W
120 W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
2x256 kB
12x256 kB
Cache L3
4096 kB
30720 kB
Date
January 2013
September 2014
Mean monothread perf.
28.55k points
36.41k points
Mean multithread perf.
50.95k points
452.9k 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
i7-3687U
E5-2670 v3
Test#1 (Integers)
10.17k
11.18k (x1.1)
Test#2 (FP)
10.16k
10.06k (x0.99)
Test#3 (Generic, ZIP)
3.86k
3.21k (x0.83)
Test#1 (Memory)
4.36k
3.12k (x0.72)
TOTAL
28.55k
27.57k (x0.97)

Multithread

i7-3687U

E5-2670 v3
Test#1 (Integers)
17.48k
140.98k (x8.07)
Test#2 (FP)
21.1k
145.37k (x6.89)
Test#3 (Generic, ZIP)
7.81k
45.62k (x5.84)
Test#1 (Memory)
4.57k
6.75k (x1.48)
TOTAL
50.95k
338.73k (x6.65)

Performance/W
i7-3687U
E5-2670 v3
Test#1 (Integers)
1028 points/W
1175 points/W
Test#2 (FP)
1241 points/W
1211 points/W
Test#3 (Generic, ZIP)
460 points/W
380 points/W
Test#1 (Memory)
269 points/W
56 points/W
TOTAL
2997 points/W
2823 points/W

Performance/GHz
i7-3687U
E5-2670 v3
Test#1 (Integers)
3082 points/GHz
3607 points/GHz
Test#2 (FP)
3078 points/GHz
3245 points/GHz
Test#3 (Generic, ZIP)
1170 points/GHz
1035 points/GHz
Test#1 (Memory)
1320 points/GHz
1007 points/GHz
TOTAL
8650 points/GHz
8894 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