Core i5-6400
Performance
Description
The Core i5-6400 is a cpu manufactured by Intel that was released on September 2015. This model has 4 Skylake-S cores , runs at 2700 MHz as base frequency and has a a thermal design power of 65 W.
Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.
Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.
Specs
Official name
Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz
CPUID
506e3
Core
Skylake-S
Architecture
Base frecuency
2.7 GHz
Boost frecuency
3.3 GHz
Socket
LGA 1151
Cores/Threads
4/4
TDP
65 W
Cache L1 (d+i)
4x32+4x32 kB
Cache L2
4x256 kB
Cache L3
6144 kB
Release date
September 2015
Mean monothread perf.
48.05k points
Mean multithread perf.
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
Multithread
Test#1 (Integers)
3.2k
11.45k (x3.6)
Test#2 (FP)
12.81k
46.67k (x3.6)
Test#3 (Generic, ZIP)
4.18k
14.69k (x3.5)
Test#1 (Memory)
4.3k
5.92k (x1.4)
TOTAL
24.49k
78.73k (x3.2)
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
Multithread
Test#1 (Integers)
11.56k
43.01k (x3.7)
Test#2 (FP)
16.53k
64.46k (x3.9)
Test#3 (Generic, ZIP)
4.3k
16.14k (x3.8)
Test#1 (Memory)
3.97k
5.91k (x1.5)
TOTAL
36.36k
129.51k (x3.6)
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
Multithread
Test#1 (Integers)
11.82k
46.04k (x3.9)
Test#2 (FP)
18.36k
69.47k (x3.8)
Test#3 (Generic, ZIP)
4.43k
16.33k (x3.7)
Test#1 (Memory)
4.95k
7.74k (x1.6)
TOTAL
39.56k
139.58k (x3.5)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
Multithread
Test#1 (Integers)
21.1k
80.03k (x3.8)
Test#2 (FP)
18.28k
71.1k (x3.9)
Test#3 (Generic, ZIP)
4.22k
16.19k (x3.8)
Test#1 (Memory)
4.45k
6.73k (x1.5)
TOTAL
48.05k
174.05k (x3.6)
Computers where this CPU was tested
RAM models tested along with this CPU
Model
Type
Frequency
Size
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.
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) [% vs time]
Test#2 (FP) [% vs time]
Test#3 (Generic, ZIP) [% vs time]
Test#1 (Memory) [% vs time]
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.
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) [% vs time]
Test#2 (FP) [% vs time]
Test#3 (Generic, ZIP) [% vs time]
Test#1 (Memory) [% vs time]
Similar CPUs to Core i5-6400
SK Hynix Core i5-6400 (This model)
Mode FPU monothread [24.49k points]
Mode FPU multithread [78.73k points]
Mode AVX2 monothread [48.05k points]
Mode AVX2 multithread [174.05k points]
Mode FPU monothread [27.3k points +11.47%]
Mode FPU multithread [101.29k points +28.65%]
Mode AVX2 monothread [50.1k points +4.27%]
Mode AVX2 multithread [205.89k points +18.29%]
Mode FPU monothread [28.34k points +15.73%]
Mode FPU multithread [84.24k points +7.00%]
Mode AVX2 monothread [49.82k points +3.68%]
Mode AVX2 multithread [143.66k points -17.46%]
Mode FPU monothread [30.83k points +25.88%]
Mode FPU multithread [90.85k points +15.40%]
Mode AVX2 monothread [53.51k points +11.37%]
Mode AVX2 multithread [168.81k points -3.01%]
Mode FPU monothread [21.02k points -14.17%]
Mode FPU multithread [70k points -11.09%]
Mode AVX2 monothread [38.29k points -20.30%]
Mode AVX2 multithread [138.69k points -20.32%]
Mode FPU monothread [24.12k points -1.50%]
Mode FPU multithread [95.36k points +21.11%]
Mode AVX2 monothread [36.5k points -24.04%]
Mode AVX2 multithread [131.34k points -24.54%]
Mode FPU monothread [28.91k points +18.05%]
Mode FPU multithread [106.18k points +34.86%]
Mode AVX2 monothread [51.43k points +7.03%]
Mode AVX2 multithread [194.2k points +11.58%]
Mode AVX2 monothread [52.69k points +9.65%]
Mode AVX2 multithread [173.7k points -0.20%]
Mode FPU monothread [36.05k points +47.19%]
Mode FPU multithread [82.84k points +5.21%]
Mode AVX2 monothread [61.42k points +27.82%]
Mode AVX2 multithread [162.73k points -6.50%]
Mode FPU monothread [24.41k points -0.34%]
Mode FPU multithread [55.36k points -29.69%]
Mode AVX2 monothread [48.25k points +0.41%]
Mode AVX2 multithread [109.1k points -37.32%]
Mode FPU monothread [37.42k points +52.78%]
Mode FPU multithread [102.01k points +29.57%]
Mode AVX2 monothread [66.66k points +38.73%]
Mode AVX2 multithread [231.63k points +33.08%]
FPU mode comparison
Monothread integers operations
Model
Score
Intel Core i5-6400
3.2k
This model
Multithread integers operations
Model
Score
Intel Core i5-6400
11.45k
This model
Monothread floating point operations
Model
Score
Intel Core i5-6400
12.81k
This model
Multithread floating point operations
Model
Score
Intel Core i5-6400
46.67k
This model
Monothread generic test (Zip compression)
Model
Score
Intel Core i5-6400
4.18k
This model
Multithread generic test (Zip compression)
Model
Score
Intel Core i5-6400
14.69k
This model
Monothread memory performance
Model
Score
Intel Core i5-6400
4.3k
This model
Multithread memory performance
Model
Score
Intel Core i5-6400
5.92k
This model
SSE mode comparison
Monothread integers operations
Model
Score
Intel Core i5-6400
11.56k
This model
Multithread integers operations
Model
Score
Intel Core i5-6400
43.01k
This model
Monothread floating point operations
Model
Score
Intel Core i5-6400
16.53k
This model
Multithread floating point operations
Model
Score
Intel Core i5-6400
64.46k
This model
Monothread generic test (Zip compression)
Model
Score
Intel Core i5-6400
4.3k
This model
Multithread generic test (Zip compression)
Model
Score
Intel Core i5-6400
16.14k
This model
Monothread memory performance
Model
Score
Intel Core i5-6400
3.97k
This model
Multithread memory performance
Model
Score
Intel Core i5-6400
5.91k
This model
AVX mode comparison
Monothread integers operations
Model
Score
Intel Core i5-6400
11.82k
This model
Multithread integers operations
Model
Score
Intel Core i5-6400
46.04k
This model
Monothread floating point operations
Model
Score
Intel Core i5-6400
18.36k
This model
Multithread floating point operations
Model
Score
Intel Core i5-6400
69.47k
This model
Monothread generic test (Zip compression)
Model
Score
Intel Core i5-6400
4.43k
This model
Multithread generic test (Zip compression)
Model
Score
Intel Core i5-6400
16.33k
This model
Monothread memory performance
Model
Score
Intel Core i5-6400
4.95k
This model
Multithread memory performance
Model
Score
Intel Core i5-6400
7.74k
This model
AVX2 mode comparison
Monothread integers operations
Model
Score
Intel Core i5-6400
21.1k
This model
Multithread integers operations
Model
Score
Intel Core i5-6400
80.03k
This model
Monothread floating point operations
Model
Score
Intel Core i5-6400
18.28k
This model
Multithread floating point operations
Model
Score
Intel Core i5-6400
71.1k
This model
Monothread generic test (Zip compression)
Model
Score
Intel Core i5-6400
4.22k
This model
Multithread generic test (Zip compression)
Model
Score
Intel Core i5-6400
16.19k
This model
Monothread memory performance
Model
Score
Intel Core i5-6400
4.45k
This model
Multithread memory performance
Model
Score
Intel Core i5-6400
6.73k
This model
Hardlimit Benchmark Central - Ver. 3.11.4