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Xeon E5-4640 vs E5-2670 v3


Description
The E5-4640 is based on Sandy Bridge architecture while the E5-2670 v3 is based on Haswell.

Using the multithread performance as a reference, the E5-4640 gets a score of 610.2 k points while the E5-2670 v3 gets 338.7 k points.

Summarizing, the E5-4640 is 1.8 times faster than the E5-2670 v3. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206d7
306f2
Core
Sandy Bridge-EP
Haswell-EP
Architecture
Base frecuency
2.4 GHz
2.3 GHz
Boost frecuency
2.8 GHz
3.1 GHz
Socket
LGA 2011
LGA 2011-3
Cores/Threads
8 /16
12/24
TDP
95 W
120 W
Cache L1 (d+i)
8x32+8x32 kB
12x32+12x32 kB
Cache L2
8x256 kB
12x256 kB
Cache L3
20480 kB
30720 kB
Date
May 2012
September 2014
Mean monothread perf.
13.88k points
36.41k points
Mean multithread perf.
610.16k 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
E5-4640
E5-2670 v3
Test#1 (Integers)
1.66k
3.52k (x2.12)
Test#2 (FP)
5.26k
8.68k (x1.65)
Test#3 (Generic, ZIP)
2.13k
2.83k (x1.33)
Test#1 (Memory)
2.53k
3.13k (x1.24)
TOTAL
11.58k
18.17k (x1.57)

Multithread

E5-4640

E5-2670 v3
Test#1 (Integers)
77.64k
32.7k (x0.42)
Test#2 (FP)
212.2k
105.18k (x0.5)
Test#3 (Generic, ZIP)
113.11k
35.18k (x0.31)
Test#1 (Memory)
7.54k
9.54k (x1.26)
TOTAL
410.48k
182.59k (x0.44)

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
E5-4640
E5-2670 v3
Test#1 (Integers)
6.19k
11.08k (x1.79)
Test#2 (FP)
5.89k
9.57k (x1.62)
Test#3 (Generic, ZIP)
2.11k
3.18k (x1.51)
Test#1 (Memory)
2.51k
3.28k (x1.31)
TOTAL
16.7k
27.11k (x1.62)

Multithread

E5-4640

E5-2670 v3
Test#1 (Integers)
244.88k
139.07k (x0.57)
Test#2 (FP)
215.35k
133.47k (x0.62)
Test#3 (Generic, ZIP)
114.64k
46.6k (x0.41)
Test#1 (Memory)
6.76k
6.65k (x0.98)
TOTAL
581.63k
325.78k (x0.56)

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
E5-2670 v3
Test#1 (Integers)
5.01k
11.18k (x2.23)
Test#2 (FP)
4.5k
10.06k (x2.23)
Test#3 (Generic, ZIP)
2.18k
3.21k (x1.47)
Test#1 (Memory)
2.19k
3.12k (x1.43)
TOTAL
13.88k
27.57k (x1.99)

Multithread

E5-4640

E5-2670 v3
Test#1 (Integers)
251.29k
140.98k (x0.56)
Test#2 (FP)
236.61k
145.37k (x0.61)
Test#3 (Generic, ZIP)
114.89k
45.62k (x0.4)
Test#1 (Memory)
7.36k
6.75k (x0.92)
TOTAL
610.16k
338.73k (x0.56)

Performance/W
E5-4640
E5-2670 v3
Test#1 (Integers)
2645 points/W
1175 points/W
Test#2 (FP)
2491 points/W
1211 points/W
Test#3 (Generic, ZIP)
1209 points/W
380 points/W
Test#1 (Memory)
78 points/W
56 points/W
TOTAL
6423 points/W
2823 points/W

Performance/GHz
E5-4640
E5-2670 v3
Test#1 (Integers)
1790 points/GHz
3607 points/GHz
Test#2 (FP)
1609 points/GHz
3245 points/GHz
Test#3 (Generic, ZIP)
777 points/GHz
1035 points/GHz
Test#1 (Memory)
782 points/GHz
1007 points/GHz
TOTAL
4957 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