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Intel Core i5-6400T

The Intel Core i5-6400T is a frugal quad-core desktop processor based on the Skylake architecture, which was announced in August 2015. The CPU, which is manufactured in a 14 nm process, runs at 2.2-2.8 GHz and does not support Hyperthreading (only 4 threads simultaneously).

Architecture

Intel uses Skylake to replace both Broadwell as well as Haswell and therefore uses one core design for all TDP classes between 4.5-45 Watts. Several improvements of the Skylake architecture include bigger Out-to-Order-Buffer, optimizations for pre-fetching as well as bigger gains by Hyperthreading. However, the changes are small for a "Tock" – a new micro architecture – in general, so the per-MHz performance is only between 5-10 % (compared to Haswell) or less than 5 % higher (compared to Broadwell), respectively.

Performance

Depending on the utilization of Hyperthreading, the performance is roughly on par with the old Core i7-2670QM mobile processor (Sandy Bridge, 2.2-2.8 GHz, Hyperthreading), but sometimes also much higher.

Graphics

Graphics are handled by the integrated Intel HD Graphics 530 with 24 EUs (Execution Units), which is clocked at 350 - 950 MHz. Compared to the HD Graphics 4600 (Haswell, 20 EUs), the performance is increased by around 25 percent. The overall GPU performance is still low-end, so modern games can, if at all, only be played smoothly with low settings.

Power Consumption

Intel specifies the TDP with 35 Watts, so it can also be used in notebooks (although bigger ones).

SeriesIntel Core i5 (Desktop)
CodenameSkylake
Clock Rate2200 - 2800 MHz
Level 1 Cache256 KB
Level 2 Cache1024 KB
Level 3 Cache6144 KB
Number of Cores / Threads4 / 4
Max. Power Consumption (TDP = Thermal Design Power)35 Watt
Manufacturing Technology14 nm
SocketFCLGA1151
FeaturesDDR3(L)-1600/DDR4-2133 Memory Controller, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
GPUIntel HD Graphics 530 (350 - 950 MHz)
64 Bit64 Bit support
Hardware VirtualizationVT-x, VT-d
Starting Price $192 U.S.
Announcement Date08/05/2015
Product Link (external)Intel Core i5 (Desktop) 6400T

Benchmarks

Cinebench R15 - CPU Multi 64Bit
0%
100%
min: 420     avg: 420 (23%)     median: 420 (23%)     max: 420 Points
Geekbench 3 - 64 Bit Multi-Core Score
0%
100%
min: 9133     avg: 9133 (28%)     median: 9133 (28%)     max: 9133 Points
Geekbench 3 - 64 Bit Single-Core Score
0%
100%
min: 3131     avg: 3131 (66%)     median: 3131 (66%)     max: 3131 Points
3DMark - Fire Strike Physics 1920x1080
0%
100%
min: 5433     avg: 5433 (25%)     median: 5433 (25%)     max: 5433 Points
3DMark - Cloud Gate Standard Physics 1280x720
0%
100%
min: 3887     avg: 3887 (10%)     median: 3887 (10%)     max: 3887 Points
TrueCrypt - Serpent Mean 100MB
0%
100%
min: 0.225     avg: 0.2 (14%)     median: 0.2 (13%)     max: 0.225 GB/s
TrueCrypt - Twofish Mean 100MB
0%
100%
min: 0.375     avg: 0.4 (22%)     median: 0.4 (22%)     max: 0.375 GB/s
TrueCrypt - AES Mean 100MB
0%
100%
min: 2.2     avg: 2.2 (21%)     median: 2.2 (21%)     max: 2.2 GB/s
X264 HD Benchmark 4.0 - Pass 2
0%
100%
min: 28.07     avg: 28.1 (28%)     median: 28.1 (28%)     max: 28.07 fps
WinRAR - Result
0%
100%
min: 2770     avg: 2770 (33%)     median: 2770 (33%)     max: 2770 KB/s
wPrime 2.0x - 1024m
0%
100%
min: 404.54     avg: 404.5 (5%)     median: 404.5 (5%)     max: 404.54 seconds
wPrime 2.0x - 32m
0%
100%
min: 12.88     avg: 12.9 (3%)     median: 12.9 (3%)     max: 12.88 seconds
3DMark 11 - Performance Physics 1280x720
0%
100%
min: 5475     avg: 5475 (33%)     median: 5475 (33%)     max: 5475 points
3DMark 06 - CPU -
0%
100%
min: 5161     avg: 5161 (48%)     median: 5161 (48%)     max: 5161 Points
Cinebench R11.5 - CPU Multi 64Bit
0%
100%
min: 4.82     avg: 4.8 (24%)     median: 4.8 (24%)     max: 4.82 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
0%
100%
min: 18940     avg: 18940 (46%)     median: 18940 (46%)     max: 18940 Points
Cinebench R10 - Rendering Single 32Bit
0%
100%
min: 4397     avg: 4397 (60%)     median: 4397 (60%)     max: 4397 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
0%
100%
min: 14798     avg: 14798 (37%)     median: 14798 (37%)     max: 14798 Points
Super Pi mod 1.5 XS 1M -
0%
100%
min: 13     avg: 13 (3%)     median: 13 (3%)     max: 13 Seconds
Super Pi mod 1.5 XS 2M -
0%
100%
min: 29     avg: 29 (1%)     median: 29 (1%)     max: 29 Seconds
Super Pi Mod 1.5 XS 32M -
0%
100%
min: 681     avg: 681 (3%)     median: 681 (3%)     max: 681 Seconds
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

Reviews for the Intel Core i5 (Desktop) 6400T processor

Schenker F516 Flex (Intel HD Graphics 530, 15.6")
» Schenker F516 Flex i5-6400T (Clevo N350DW) Notebook Review - Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Intel Core i5 (Desktop)

» Intel Core i5 (Desktop) 7600K
   3.8 GHz / 1 MB + 8 MB
» Intel Core i5 (Desktop) 6600K
   3.5 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 4590
   3.3 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 3570K
   3.4 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 6500
   3.2 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 3550
   3.3 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 3470
   3.2 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 2500K
   3.3 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 6600T
   2.7 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 4460
   3.2 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 4430
   3 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 6500T
   2.5 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 2400
   3.1 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 6400T
   2.2 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 750
   2.66 GHz / 1 MB + 8 MB

Surrounding CPUs

- Intel Core i7 2820QM
   2.3 GHz / 1 MB + 8 MB
- Intel Core i7 3612QM
   2.1 GHz / 1 MB + 6 MB
- Intel Core i7 2720QM
   2.2 GHz / 1 MB + 6 MB
- Intel Core i7 2675QM
   2.2 GHz / 1 MB + 6 MB
- Intel Core i7 2670QM
   2.2 GHz / 1 MB + 6 MB
» Intel Core i5 (Desktop) 6400T
   2.2 GHz / 1 MB + 6 MB
+ Intel Core i7 6567U
   3.3 GHz / 512 KB + 4096 KB
+ Intel Core i5 7360U
   2.3 GHz / 512 KB + 4096 KB
+ Intel Core i5 7267U
   3.1 GHz / 512 KB + 4096 KB
+ Intel Core i7 7500U
   2.7 GHz / 512 KB + 4096 KB
+ Intel Core i5 5350H
   3 GHz / 512 KB + 4096 KB
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Core i5 (Desktop) 6400T Notebook Processor
Klaus Hinum (Update: 2016-06- 7)