| | | | | | |

Core i5-6400 vs Xeon E5-2697 v2


Description
The i5-6400 is based on Skylake architecture while the E5-2697 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i5-6400 gets a score of 139.6 k points while the E5-2697 v2 gets 633.1 k points.

Summarizing, the E5-2697 v2 is 4.5 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306e4
Core
Skylake-S
Ivy Bridge-EP
Architecture
Base frecuency
2.7 GHz
2.7 GHz
Boost frecuency
3.3 GHz
3.5 GHz
Socket
LGA 1151
LGA 2011
Cores/Threads
4/4
12 /24
TDP
65 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
12x32+12x32 kB
Cache L2
4x256 kB
12x256 kB
Cache L3
6144 kB
30720 kB
Date
September 2015
September 2013
Mean monothread perf.
48.05k points
27.92k points
Mean multithread perf.
174.05k points
633.14k 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
i5-6400
E5-2697 v2
Test#1 (Integers)
3.2k
3.44k (x1.07)
Test#2 (FP)
12.81k
9.54k (x0.75)
Test#3 (Generic, ZIP)
4.18k
4.21k (x1.01)
Test#1 (Memory)
4.3k
3.94k (x0.92)
TOTAL
24.49k
21.13k (x0.86)

Multithread

i5-6400

E5-2697 v2
Test#1 (Integers)
11.45k
73.17k (x6.39)
Test#2 (FP)
46.67k
230.83k (x4.95)
Test#3 (Generic, ZIP)
14.69k
107.14k (x7.29)
Test#1 (Memory)
5.92k
7.99k (x1.35)
TOTAL
78.73k
419.12k (x5.32)

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
i5-6400
E5-2697 v2
Test#1 (Integers)
11.56k
10.64k (x0.92)
Test#2 (FP)
16.53k
9.53k (x0.58)
Test#3 (Generic, ZIP)
4.3k
4.12k (x0.96)
Test#1 (Memory)
3.97k
3.62k (x0.91)
TOTAL
36.36k
27.91k (x0.77)

Multithread

i5-6400

E5-2697 v2
Test#1 (Integers)
43.01k
252.69k (x5.88)
Test#2 (FP)
64.46k
238.68k (x3.7)
Test#3 (Generic, ZIP)
16.14k
115.5k (x7.15)
Test#1 (Memory)
5.91k
10.98k (x1.86)
TOTAL
129.51k
617.84k (x4.77)

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
i5-6400
E5-2697 v2
Test#1 (Integers)
11.82k
10.53k (x0.89)
Test#2 (FP)
18.36k
9.98k (x0.54)
Test#3 (Generic, ZIP)
4.43k
4k (x0.9)
Test#1 (Memory)
4.95k
3.4k (x0.69)
TOTAL
39.56k
27.92k (x0.71)

Multithread

i5-6400

E5-2697 v2
Test#1 (Integers)
46.04k
247.05k (x5.37)
Test#2 (FP)
69.47k
264.43k (x3.81)
Test#3 (Generic, ZIP)
16.33k
111.01k (x6.8)
Test#1 (Memory)
7.74k
10.66k (x1.38)
TOTAL
139.58k
633.14k (x4.54)

Performance/W
i5-6400
E5-2697 v2
Test#1 (Integers)
708 points/W
1900 points/W
Test#2 (FP)
1069 points/W
2034 points/W
Test#3 (Generic, ZIP)
251 points/W
854 points/W
Test#1 (Memory)
119 points/W
82 points/W
TOTAL
2147 points/W
4870 points/W

Performance/GHz
i5-6400
E5-2697 v2
Test#1 (Integers)
3583 points/GHz
3007 points/GHz
Test#2 (FP)
5563 points/GHz
2852 points/GHz
Test#3 (Generic, ZIP)
1341 points/GHz
1144 points/GHz
Test#1 (Memory)
1500 points/GHz
973 points/GHz
TOTAL
11987 points/GHz
7976 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