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Core i7-4930K vs i5-6400


Description
The i7-4930K is based on Ivy Bridge architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i7-4930K gets a score of 198.3 k points while the i5-6400 gets 139.6 k points.

Summarizing, the i7-4930K is 1.4 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
506e3
Core
Ivy Bridge-E
Skylake-S
Architecture
Base frecuency
3.4 GHz
2.7 GHz
Boost frecuency
3.9 GHz
3.3 GHz
Socket
LGA 2011
LGA 1151
Cores/Threads
6/12
4/4
TDP
130 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
September 2013
September 2015
Mean monothread perf.
32.22k points
48.05k points
Mean multithread perf.
198.27k points
174.05k 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
i7-4930K
i5-6400
Test#1 (Integers)
12k
11.82k (x0.99)
Test#2 (FP)
11.35k
18.36k (x1.62)
Test#3 (Generic, ZIP)
4.53k
4.43k (x0.98)
Test#1 (Memory)
4.35k
4.95k (x1.14)
TOTAL
32.22k
39.56k (x1.23)

Multithread

i7-4930K

i5-6400
Test#1 (Integers)
72.46k
46.04k (x0.64)
Test#2 (FP)
80.33k
69.47k (x0.86)
Test#3 (Generic, ZIP)
33.44k
16.33k (x0.49)
Test#1 (Memory)
12.03k
7.74k (x0.64)
TOTAL
198.27k
139.58k (x0.7)

Performance/W
i7-4930K
i5-6400
Test#1 (Integers)
557 points/W
708 points/W
Test#2 (FP)
618 points/W
1069 points/W
Test#3 (Generic, ZIP)
257 points/W
251 points/W
Test#1 (Memory)
93 points/W
119 points/W
TOTAL
1525 points/W
2147 points/W

Performance/GHz
i7-4930K
i5-6400
Test#1 (Integers)
3077 points/GHz
3583 points/GHz
Test#2 (FP)
2910 points/GHz
5563 points/GHz
Test#3 (Generic, ZIP)
1161 points/GHz
1341 points/GHz
Test#1 (Memory)
1115 points/GHz
1500 points/GHz
TOTAL
8262 points/GHz
11987 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