Core i5-6400T

Details and Benchmarks for Intel Core i5-6400T

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Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core i5-6400T based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,824 Rank: 1010
Rank Name Score Visual
1006 Celeron G3930TE 4,837
+0.3%
1007 Pentium G4400T 4,834
+0.2%
1008 Core i7-6822EQ 4,827
+0.1%
1009 Core i7-4710HQ 4,826
+0%
1010 Core i5-6400T 4,824
1011 Core i3-4130 4,820
-0.1%
1012 Core i5-3450S 4,818
-0.1%
1013 Ryzen 3 2200GE 4,815
-0.2%
1014 Xeon E5-2643 v2 4,815
-0.2%
1015 Pentium Gold G5420T 4,813
-0.2%

View full ranking →

Multicore Score

Multicore performance score for Core i5-6400T based on multi-threaded benchmark results.

4,571 Rank: 1132
Rank Name Score Visual
1128 A10-7890K 4,576
+0.1%
1129 Core i7-7560U 4,573
+0%
1130 Core i5-6400 4,573
+0%
1131 Core i3-2348M 4,572
+0%
1132 Core i5-6400T 4,571
1133 Atom x5-Z8300 4,570
+-0%
1134 Pentium G4500T 4,569
+-0%
1135 Xeon E5530 4,569
+-0%
1136 Core i5-2450P 4,568
-0.1%
1137 Core i3-6100T 4,566
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Core i5-6400T based on single-threaded benchmark results.

4,993 Rank: 943
Rank Name Score Visual
939 Core i5-7Y54 5,003
+0.2%
940 EPYC 7351P 5,003
+0.2%
941 Xeon E5-2682 v4 5,002
+0.2%
942 Core i5-3570 4,997
+0.1%
943 Core i5-6400T 4,993
944 Celeron G4900 4,988
-0.1%
945 Core i7-3740QM 4,988
-0.1%
946 Core i7-7500U 4,982
-0.2%
947 Core i5-8365U 4,980
-0.3%
948 Core i7 970 4,980
-0.3%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core i5-6400T based on integer math, floating point math, and prime number computation benchmarks.

4,598 Rank: 967
Rank Name Score Visual
963 Core i5-2500 4,600
+0%
964 Core i7-2920XM 4,600
+0%
965 Xeon W3540 4,600
+0%
966 Xeon E5640 4,599
+0%
967 Core i5-6400T 4,598
968 Core i7-860 4,598
+0%
969 Pentium Gold G5620 4,597
+-0%
970 Core i7-2760QM 4,597
+-0%
971 Core i7-930 4,597
+-0%
972 Core i3-7350K 4,596
+-0%

View full ranking →

Data Processing

Aggregated score for Core i5-6400T based on data encryption, data compression, and string sorting benchmarks.

4,557 Rank: 1030
Rank Name Score Visual
1026 Core i3-6100 4,559
+0%
1027 Phenom II X4 B65 4,559
+0%
1028 Core i7-7567U 4,558
+0%
1029 Athlon X4 880K 4,558
+0%
1030 Core i5-6400T 4,557
1031 Pentium G4600 4,557
+0%
1032 Xeon E5540 4,557
+0%
1033 Core i3-4370 4,556
+-0%
1034 A12-9800 4,556
+-0%
1035 Xeon X3440 4,556
+-0%

View full ranking →

Physics & Compute

Aggregated score for Core i5-6400T based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,647 Rank: 849
Rank Name Score Visual
845 Core i7-4712HQ 4,649
+0%
846 Ryzen Embedded V1807B 4,648
+0%
847 Ryzen 5 1400 4,648
+0%
848 Core i7-4700MQ 4,648
+0%
849 Core i5-6400T 4,647
850 Ryzen 3 3200G 4,647
+0%
851 Core i3-1115G4 4,646
+-0%
852 Ryzen 7 3750H 4,645
+-0%
853 Core i7-4702MQ 4,644
-0.1%
854 Ryzen 7 2800H 4,643
-0.1%

View full ranking →

Core i5-6400T Details

The Core i5-6400T stands as a mid-range desktop processor from Intel's Skylake generation, released in 2015. While it's now over eight years old, its 35 W TDP and LGA-1151 socket make it a low-power option suitable for compact systems or energy-efficient builds. As of March 2026, the processor remains relevant for basic computing tasks but is significantly outpaced by modern CPUs in both single-threaded and multi-threaded performance.

Performance-wise, the Core i5-6400T achieves a Passmark Overall Score of 4824, ranking it #1010 out of 2060 processors. In single-core performance, it scores 4993, placing it #943, while its multicore score of 4571 lands it at #1132. These results place it behind many contemporary and even older processors such as the Core i5-6400 (score: 4573) and Core i7-7560U (score: 4573), indicating that its performance is modest by today’s standards. Its single-core performance is stronger relative to its multicore capabilities, suggesting it excels in tasks that rely on high clock speeds rather than parallel processing.

The processor features four cores and four threads, built on a 14 nm process with the Skylake microarchitecture. It operates at a base frequency of 2.2 GHz, with a turbo frequency of up to 2.8 GHz when running on a single core. The cache hierarchy includes 0.25 MiB of L1 cache, 1 MiB of L2 cache, and a 6 MiB L3 cache. It supports DDR3L-1600 and DDR4-2133 memory across two channels, with a maximum memory bandwidth of 31.79 GiB/s and up to 64 GiB of system memory.

Integrated graphics are provided by the HD Graphics 530, featuring 24 execution units capable of reaching a burst frequency of 950 MHz. This GPU supports up to three displays and is adequate for light multimedia tasks, but it lacks the power needed for modern gaming or GPU-intensive applications. The processor also supports a range of Intel technologies, including AES-NI, AVX/AVX2, Intel VT-x, and Intel VT-d, making it suitable for virtualization and encryption workloads.

In summary, the Core i5-6400T is a legacy processor best suited for entry-level desktops, office work, or embedded applications where power efficiency and low heat output are prioritized over raw performance. While it remains functional for basic tasks, its age and performance limitations make it a poor choice for modern workloads, gaming, or content creation. As of March 2026, users seeking better performance should consider more recent Intel or AMD processors with significantly higher clock speeds, advanced architectures, and support for newer memory technologies.
Frequently Compared

Intel Core i7-7660U 22 views

Intel Xeon E5-2680 v4 21 views

Intel Xeon Silver 4210 19 views

Intel Xeon Silver 4214 19 views

AMD Ryzen 3 PRO 2200GE 18 views

Intel Xeon Silver 4112 18 views

Intel Xeon Silver 4108 18 views

AMD EPYC 7402P 17 views

AMD Ryzen 9 PRO 3900 16 views

AMD Ryzen 5 PRO 3500U 16 views

Intel Core i5-6400T

Main Specifications

Designer: Intel
Name: Core i5-6400T
Family: Core
Series: i5-6000
Model Number: i5-6400T
Cores: 4
Threads: 4
Base Frequency: 2200 MHz
Turbo Frequency (1 core): 2800 MHz
Turbo Frequency (2 cores): 2700 MHz
Turbo Frequency (3 cores): 2600 MHz
Turbo Frequency (4 cores): 2500 MHz
Clock Multiplier: 22x (locked)
Microarchitecture: Skylake
Core Name: Skylake
Core Family: 6
Core Model: 94
Socket: LGA-1151
Package: FCLGA-1151
Chipset: Sunrise
Target Segment: Desktop
Max CPUs: 1
TDP: 35 W
Release Price: $182.00

Cache Specifications

L1 Cache: 256 KiB
L1 Instruction Cache: 128 KiB (8-way set associative)
L1 Data Cache: 128 KiB (8-way set associative)
L2 Cache: 1 MiB (4-way set associative)
L3 Cache: 6 MiB

Memory Specifications

Supported Memory Type: DDR3L-1600 and DDR4-2133
Memory Channels: 2
Maximum Memory: 64 GB
Maximum Bandwidth: 31.79 GB/s
ECC Support: No

Integrated Graphics

GPU: HD Graphics 530
GPU Designer: Intel
GPU Max Frequency: 950 MHz
Execution Units: 24

Physical Specifications

Process: 14 nm
Die Area: 122 mm²
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX TBT 2.0 EIST VT-x VT-d EPT MPX SGX Secure Key SMEP IPT BPT
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