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Intel Core i5-6500 vs Intel Core i5-6400

Intel Core i5-6500

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The Intel Core i5-6500 is a mid-range 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 3.2 - 3.6 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

The performance is similar to the old Core i5-3570K of the Sandy Bridge generation. Therefore, it should be sufficient even for demanding tasks.

Graphics

Graphics are handled by the integrated Intel HD Graphics 530 with 24 EUs (Execution Units), which is clocked at 350 - 1050 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 65 Watts.

Intel Core i5-6400

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The Intel Core i5-6400 is a desktop class quad-core CPU. The additional 4 threads are not available to the CPU as it is missing the HyperThreading support. The i5-6400 is based on Skylake architecture and clocks within the 2.7 GHz to 3.3 GHz range. 

ModelIntel Core i5-6500Intel Core i5-6400
SeriesIntel Core i5 (Desktop)Intel Core i5 (Desktop)
CodenameSkylakeSkylake
Series: Core i5 (Desktop) Skylake
Intel Core i5-6600K compare3.5 - 3.9 GHz4 / 4 cores6 MB L3
Intel Core i5-6500 « 3.2 - 3.6 GHz4 / 4 cores6 MB L3
Intel Core i5-6600T compare2.7 - 3.5 GHz4 / 4 cores6 MB L3
Intel Core i5-64002.7 - 3.3 GHz4 / 4 cores6 MB L3
Intel Core i5-6500T compare2.5 - 3.1 GHz4 / 4 cores6 MB L3
Intel Core i5-6400T compare2.2 - 2.8 GHz4 / 4 cores6 MB L3
Intel Core i5-6600K compare3.5 - 3.9 GHz4 / 4 cores6 MB L3
Intel Core i5-65003.2 - 3.6 GHz4 / 4 cores6 MB L3
Intel Core i5-6600T compare2.7 - 3.5 GHz4 / 4 cores6 MB L3
Intel Core i5-6400 « 2.7 - 3.3 GHz4 / 4 cores6 MB L3
Intel Core i5-6500T compare2.5 - 3.1 GHz4 / 4 cores6 MB L3
Intel Core i5-6400T compare2.2 - 2.8 GHz4 / 4 cores6 MB L3
Clock3200 - 3600 MHz2700 - 3300 MHz
L1 Cache256 KB256 KB
L2 Cache1 MB1 MB
L3 Cache6 MB6 MB
Cores / Threads4 / 44 / 4
TDP65 Watt65 Watt
Technology14 nm14 nm
FeaturesDDR3(L)-1600/DDR4-2133 Memory Controller, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vProDDR3(L)-1600/DDR4-2133 Memory Controller, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
iGPUIntel HD Graphics 530 (350 - 1050 MHz)Intel HD Graphics 530 (350 - 950 MHz)
Architecturex86x86
$192 U.S.$187 U.S.
Announced
ManufacturerIntel Core i5 (Desktop) 6500Intel Core i5 (Desktop) 6400
SocketFCLGA1151

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
100%
6500 +
min: 535     avg: 542     median: 541.5 (6%)     max: 548 Points
510 Points (5%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
100%
6500 +
min: 142     avg: 146.5     median: 146.5 (45%)     max: 151 Points
134 Points (41%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
6500 +
6.4 Points (9%)
5.9 Points (8%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
6500 +
1.7 Points (6%)
1.5 Points (5%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
6500 +
5746 Points (47%)
5088 Points (42%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
6500 +
19577 Points (22%)
18297 Points (21%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
6500 +
331 s (4%)
100%
6400 +
327.1 s (4%)
wPrime 2.10 - wPrime 2.0 32m *
100%
6500 +
10.6 s (2%)
100%
6400 +
10.5 s (2%)
WinRAR - WinRAR 4.0
100%
1 6500 +
3100 Points (18%)
X264 HD Benchmark 4.0 - x264 Pass 2
100%
6500 +
36.1 fps (13%)
33.9 fps (12%)
X264 HD Benchmark 4.0 - x264 Pass 1
100%
6500 +
174.5 fps (41%)
150.1 fps (35%)
TrueCrypt - TrueCrypt Serpent
100%
6500 +
0.3 GB/s (0%)
0.3 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
100%
6500 +
0.5 GB/s (0%)
0.4 GB/s (0%)
TrueCrypt - TrueCrypt AES
100%
6500 +
2.9 GB/s (0%)
2.7 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 6500 +
6653 Points (14%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
6500 +
10.4 s (2%)
100%
6400 +
12 s (3%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
6500 +
23.5 s (1%)
100%
6400 +
27.6 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 6400 +
660 s (3%)
3DMark 11 - 3DM11 Performance Physics
100%
6500 +
6887 Points (19%)
6283 Points (17%)
3DMark - 3DMark Ice Storm Physics
100%
1 6400 +
48092 Points (31%)
3DMark - 3DMark Ice Storm Extreme Physics
100%
1 6400 +
50839 Points (42%)
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 6400 +
53239 Points (45%)
3DMark - 3DMark Cloud Gate Physics
100%
1 6400 +
4894 Points (12%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 6400 +
6903 Points (13%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
100%
1 6500 +
min: 11422     avg: 11749     median: 11749 (18%)     max: 12076 Points
Geekbench 3 - Geekbench 3 64 Bit Single-Core
100%
1 6500 +
min: 3768     avg: 3856     median: 3855.5 (58%)     max: 3943 Points
Sunspider - Sunspider 1.0 Total Score *
100%
6500 +
108 ms (1%)
100%
6400 +
82.9 ms (1%)
Octane V2 - Octane V2 Total Score
100%
1 6500 +
min: 34052     avg: 36488     median: 36488 (38%)     max: 38924 Points

Average Benchmarks Intel Core i5-6500 → 100% n=17

Average Benchmarks Intel Core i5-6400 → 94% n=17

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)