| | | | | | |

Core i7-860 vs i5-6400


Description
The i7-860 is based on Nehalem architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i7-860 gets a score of 75.4 k points while the i5-6400 gets 129.5 k points.

Summarizing, the i5-6400 is 1.7 times faster than the i7-860 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
506e3
Core
Lynnfield
Skylake-S
Architecture
Base frecuency
2.8 GHz
2.7 GHz
Boost frecuency
3.467 GHz
3.3 GHz
Socket
LGA 1156
LGA 1151
Cores/Threads
4/8
4/4
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
September 2009
September 2015
Mean monothread perf.
19.19k points
48.05k points
Mean multithread perf.
75.43k points
174.05k 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
i7-860
i5-6400
Test#1 (Integers)
2.15k
3.2k (x1.49)
Test#2 (FP)
4.87k
12.81k (x2.63)
Test#3 (Generic, ZIP)
2.82k
4.18k (x1.48)
Test#1 (Memory)
3.13k
4.3k (x1.38)
TOTAL
12.97k
24.49k (x1.89)

Multithread

i7-860

i5-6400
Test#1 (Integers)
8.24k
11.45k (x1.39)
Test#2 (FP)
21.63k
46.67k (x2.16)
Test#3 (Generic, ZIP)
14.65k
14.69k (x1)
Test#1 (Memory)
5.02k
5.92k (x1.18)
TOTAL
49.54k
78.73k (x1.59)

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
i7-860
i5-6400
Test#1 (Integers)
7.87k
11.56k (x1.47)
Test#2 (FP)
5.25k
16.53k (x3.15)
Test#3 (Generic, ZIP)
2.94k
4.3k (x1.46)
Test#1 (Memory)
3.13k
3.97k (x1.27)
TOTAL
19.19k
36.36k (x1.89)

Multithread

i7-860

i5-6400
Test#1 (Integers)
31.5k
43.01k (x1.37)
Test#2 (FP)
23.47k
64.46k (x2.75)
Test#3 (Generic, ZIP)
15.47k
16.14k (x1.04)
Test#1 (Memory)
4.98k
5.91k (x1.19)
TOTAL
75.43k
129.51k (x1.72)

Performance/W
i7-860
i5-6400
Test#1 (Integers)
332 points/W
662 points/W
Test#2 (FP)
247 points/W
992 points/W
Test#3 (Generic, ZIP)
163 points/W
248 points/W
Test#1 (Memory)
52 points/W
91 points/W
TOTAL
794 points/W
1992 points/W

Performance/GHz
i7-860
i5-6400
Test#1 (Integers)
2271 points/GHz
3503 points/GHz
Test#2 (FP)
1514 points/GHz
5009 points/GHz
Test#3 (Generic, ZIP)
847 points/GHz
1302 points/GHz
Test#1 (Memory)
902 points/GHz
1203 points/GHz
TOTAL
5534 points/GHz
11018 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