Intel Core i5-11400H vs Intel Core i5-6600K

Comparative analysis of Intel Core i5-11400H and Intel Core i5-6600K processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Core i5-11400H

Intel Core i5-6600K

Differences

Reasons to consider the Intel Core i5-11400H

CPU is newer: launch date 5 year(s) 9 month(s) later
2 more cores, run more applications at once: 6 vs 4
8 more threads: 12 vs 4
Around 15% higher clock speed: 4.50 GHz vs 3.90 GHz
Around 56% higher maximum core temperature: 100°C vs 64°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 10 nm SuperFin vs 14 nm
2.3x more L1 cache, more data can be stored in the L1 cache for quick access later
7.5x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 128 GB vs 64 GB
Around 29% better performance in PassMark - Single thread mark: 2983 vs 2317
2.4x better performance in PassMark - CPU mark: 15427 vs 6303
2.1x better performance in 3DMark Fire Strike - Physics Score: 5241 vs 2547

Specifications (specs)
Launch date	11 May 2021 vs 5 August 2015
Number of cores	6 vs 4
Number of threads	12 vs 4
Maximum frequency	4.50 GHz vs 3.90 GHz
Maximum core temperature	100°C vs 64°C
Manufacturing process technology	10 nm SuperFin vs 14 nm
L1 cache	576 KB vs 256 KB
L2 cache	7.5 MB vs 1 MB
L3 cache	12 MB vs 6 MB
Maximum memory size	128 GB vs 64 GB
Benchmarks
PassMark - Single thread mark	2983 vs 2317
PassMark - CPU mark	15427 vs 6303
3DMark Fire Strike - Physics Score	5241 vs 2547

Reasons to consider the Intel Core i5-6600K

Processor is unlocked, an unlocked multiplier allows for easier overclocking

Unlocked	Unlocked vs Locked

Compare benchmarks

CPU 1: Intel Core i5-11400H
CPU 2: Intel Core i5-6600K

PassMark - Single thread mark

CPU 1

CPU 2

2983

2317

PassMark - CPU mark

CPU 1

CPU 2

15427

6303

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

5241

2547

Name	Intel Core i5-11400H	Intel Core i5-6600K
PassMark - Single thread mark	2983	2317
PassMark - CPU mark	15427	6303
3DMark Fire Strike - Physics Score	5241	2547
Geekbench 4 - Single Core		1103
Geekbench 4 - Multi-Core		3627
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		3.973
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		83.338
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.497
CompuBench 1.5 Desktop - Video Composition (Frames/s)		2.388
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		6.333
GFXBench 4.0 - Car Chase Offscreen (Frames)		1883
GFXBench 4.0 - Manhattan (Frames)		3632
GFXBench 4.0 - T-Rex (Frames)		6856
GFXBench 4.0 - Car Chase Offscreen (Fps)		1883
GFXBench 4.0 - Manhattan (Fps)		3632
GFXBench 4.0 - T-Rex (Fps)		6856

Compare specifications (specs)

	Intel Core i5-11400H	Intel Core i5-6600K
Essentials
Architecture codename	Tiger Lake	Skylake
Launch date	11 May 2021	5 August 2015
Launch price (MSRP)	$250	$242
Place in performance rating	842	1192
Processor Number	i5-11400H	i5-6600K
Series	11th Generation Intel Core i5 Processors	6th Generation Intel® Core™ i5 Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Desktop
Price now		$258.11
Value for money (0-100)		9.19
Performance
64 bit support
Bus Speed	8 GT/s	8 GT/s DMI3
L1 cache	576 KB	256 KB
L2 cache	7.5 MB	1 MB
L3 cache	12 MB	6 MB
Manufacturing process technology	10 nm SuperFin	14 nm
Maximum core temperature	100°C	64°C
Maximum frequency	4.50 GHz	3.90 GHz
Number of cores	6	4
Number of threads	12	4
Base frequency		3.50 GHz
Maximum case temperature (TCase)		72 °C
Unlocked
Memory
Max memory channels	2	2
Maximum memory bandwidth	51.2 GB/s	34.1 GB/s
Maximum memory size	128 GB	64 GB
Supported memory types	Up to 3200 MT/s	DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Graphics
Device ID	0x9A68	0x1912
Execution Units	16
Graphics base frequency	350 MHz	350 MHz
Graphics max dynamic frequency	1.45 GHz	1.15 GHz
Intel® Quick Sync Video
Processor graphics	Intel UHD Graphics for 11th Gen Intel Processors	Intel® HD Graphics 530
Graphics max frequency		1.15 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Max video memory		64 GB
Graphics interfaces
Number of displays supported	4	3
DisplayPort
DVI
eDP
HDMI
Wireless Display (WiDi) support
Graphics image quality
Max resolution over DisplayPort	7680x4320@60Hz	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz	4096x2304@60Hz
4K resolution support
Max resolution over HDMI 1.4		4096x2304@24Hz
Max resolution over VGA		N / A
Max resolution over WiDi		1080p
Graphics API support
DirectX	12.1	12
OpenGL	4.6	4.5
Compatibility
Configurable TDP-down	35 Watt
Configurable TDP-down Frequency	2.20 GHz
Configurable TDP-up	45 Watt
Configurable TDP-up Frequency	2.70 GHz
Max number of CPUs in a configuration	1	1
Package Size	50 x 26.5	37.5mm x 37.5mm
Sockets supported	FCBGA1787	FCLGA1151
Low Halogen Options Available
Thermal Design Power (TDP)		91 Watt
Thermal Solution		PCG 2015D (130W)
Peripherals
Max number of PCIe lanes	20	16
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4	Up to 1x16, 2x8, 1x8+2x4
PCI Express revision		3.0
Scalability		1S Only
Security & Reliability
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Mode-based Execute Control (MBE)
Secure Boot
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Volume Management Device (VMD)
Speed Shift technology
Thermal Monitoring
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)