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Xeon E5-4640 vs Core i5-7400


Description
The E5-4640 is based on Sandy Bridge architecture while the i5-7400 is based on Kaby Lake.

Using the multithread performance as a reference, the E5-4640 gets a score of 588.2 k points while the i5-7400 gets 145.2 k points.

Summarizing, the E5-4640 is 4.1 times faster than the i5-7400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206d7
906e9
Core
Sandy Bridge-EP
Kaby Lake-S
Architecture
Base frecuency
2.4 GHz
3 GHz
Boost frecuency
2.8 GHz
3.5 GHz
Socket
LGA 2011
LGA 1151
Cores/Threads
8 /16
4/4
TDP
95 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x256 kB
4x256 kB
Cache L3
20480 kB
6144 kB
Date
May 2012
September 2016
Mean monothread perf.
13.33k points
52.69k points
Mean multithread perf.
588.16k points
173.7k 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
E5-4640
i5-7400
Test#1 (Integers)
4.79k
12.72k (x2.66)
Test#2 (FP)
4.39k
19.3k (x4.4)
Test#3 (Generic, ZIP)
2.08k
4.76k (x2.29)
Test#1 (Memory)
2.08k
8.73k (x4.2)
TOTAL
13.33k
45.52k (x3.42)

Multithread

E5-4640

i5-7400
Test#1 (Integers)
242.54k
47.95k (x0.2)
Test#2 (FP)
228.42k
71.98k (x0.32)
Test#3 (Generic, ZIP)
109.28k
17.22k (x0.16)
Test#1 (Memory)
7.92k
8.03k (x1.01)
TOTAL
588.16k
145.18k (x0.25)

Performance/W
E5-4640
i5-7400
Test#1 (Integers)
2553 points/W
738 points/W
Test#2 (FP)
2404 points/W
1107 points/W
Test#3 (Generic, ZIP)
1150 points/W
265 points/W
Test#1 (Memory)
83 points/W
123 points/W
TOTAL
6191 points/W
2233 points/W

Performance/GHz
E5-4640
i5-7400
Test#1 (Integers)
1709 points/GHz
3635 points/GHz
Test#2 (FP)
1568 points/GHz
5514 points/GHz
Test#3 (Generic, ZIP)
742 points/GHz
1361 points/GHz
Test#1 (Memory)
742 points/GHz
2495 points/GHz
TOTAL
4760 points/GHz
13006 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