Intel Core i7-6900K vs Intel Core i7-6700

Comparative analysis of Intel Core i7-6900K and Intel Core i7-6700 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics interfaces, Graphics image quality, Graphics API support. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, 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 i7-6900K

Intel Core i7-6700

Differences

Reasons to consider the Intel Core i7-6900K

CPU is newer: launch date 8 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 8 vs 4
8 more threads: 16 vs 8
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2.5x 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 2% better performance in PassMark - Single thread mark: 2329 vs 2290
Around 79% better performance in PassMark - CPU mark: 14476 vs 8080
Around 3% better performance in Geekbench 4 - Single Core: 1005 vs 978
2.1x better performance in Geekbench 4 - Multi-Core: 7893 vs 3792
3.1x better performance in 3DMark Fire Strike - Physics Score: 8778 vs 2838
Around 89% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 10.395 vs 5.51
2x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 179.127 vs 87.719
Around 86% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.3 vs 0.699
Around 87% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 5.194 vs 2.778
2x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 13.602 vs 6.707

Specifications (specs)
Launch date	May 2016 vs 5 August 2015
Unlocked	Unlocked vs Locked
Number of cores	8 vs 4
Number of threads	16 vs 8
L2 cache	256 KB (per core) vs 1 MB
L3 cache	20480 KB (shared) vs 8 MB
Maximum memory size	128 GB vs 64 GB
Benchmarks
PassMark - Single thread mark	2329 vs 2290
PassMark - CPU mark	14476 vs 8080
Geekbench 4 - Single Core	1005 vs 978
Geekbench 4 - Multi-Core	7893 vs 3792
3DMark Fire Strike - Physics Score	8778 vs 2838
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	10.395 vs 5.51
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	179.127 vs 87.719
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.3 vs 0.699
CompuBench 1.5 Desktop - Video Composition (Frames/s)	5.194 vs 2.778
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	13.602 vs 6.707

Reasons to consider the Intel Core i7-6700

Around 8% higher clock speed: 4.00 GHz vs 3.70 GHz
2.2x lower typical power consumption: 65 Watt vs 140 Watt

Maximum frequency	4.00 GHz vs 3.70 GHz
Thermal Design Power (TDP)	65 Watt vs 140 Watt

Compare benchmarks

CPU 1: Intel Core i7-6900K
CPU 2: Intel Core i7-6700

PassMark - Single thread mark

CPU 1

CPU 2

2329

2290

PassMark - CPU mark

CPU 1

CPU 2

14476

8080

Geekbench 4 - Single Core

CPU 1

CPU 2

1005

978

Geekbench 4 - Multi-Core

CPU 1

CPU 2

7893

3792

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

8778

2838

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

10.395

5.51

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

179.127

87.719

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

1.3

0.699

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

5.194

2.778

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

13.602

6.707

Name	Intel Core i7-6900K	Intel Core i7-6700
PassMark - Single thread mark	2329	2290
PassMark - CPU mark	14476	8080
Geekbench 4 - Single Core	1005	978
Geekbench 4 - Multi-Core	7893	3792
3DMark Fire Strike - Physics Score	8778	2838
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	10.395	5.51
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	179.127	87.719
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.3	0.699
CompuBench 1.5 Desktop - Video Composition (Frames/s)	5.194	2.778
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	13.602	6.707
GFXBench 4.0 - Car Chase Offscreen (Frames)		1719
GFXBench 4.0 - Manhattan (Frames)		3081
GFXBench 4.0 - T-Rex (Frames)		4216
GFXBench 4.0 - Car Chase Offscreen (Fps)		1719
GFXBench 4.0 - Manhattan (Fps)		3081
GFXBench 4.0 - T-Rex (Fps)		4216

Compare specifications (specs)

	Intel Core i7-6900K	Intel Core i7-6700
Essentials
Architecture codename	Broadwell E	Skylake
Launch date	May 2016	5 August 2015
Launch price (MSRP)	$1,020	$303
Place in performance rating	1400	1410
Price now	$1,198.99	$340.56
Processor Number	i7-6900K	i7-6700
Series	Intel® Core™ X-series Processors	6th Generation Intel® Core™ i7 Processors
Status	Discontinued	Launched
Value for money (0-100)	4.35	8.66
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.20 GHz	3.40 GHz
L1 cache	32 KB (per core)	256 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	20480 KB (shared)	8 MB
Manufacturing process technology	14 nm	14 nm
Maximum case temperature (TCase)	72 °C	72 °C
Maximum frequency	3.70 GHz	4.00 GHz
Number of cores	8	4
Number of threads	16	8
Unlocked
Bus Speed		8 GT/s DMI3
Maximum core temperature		71°C
Memory
Max memory channels	4	2
Maximum memory size	128 GB	64 GB
Supported memory types	DDR4 2400/2133	DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Maximum memory bandwidth		34.1 GB/s
Graphics
Processor graphics	None	Intel® HD Graphics 530
Device ID		0x1912
Graphics base frequency		350 MHz
Graphics max dynamic frequency		1.15 GHz
Graphics max frequency		1.15 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory		64 GB
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Sockets supported	FCLGA2011-3	FCLGA1151
Thermal Design Power (TDP)	140 Watt	65 Watt
Package Size		37.5mm x 37.5mm
Thermal Solution		PCG 2015C (65W)
Peripherals
Max number of PCIe lanes	40	16
PCI Express revision	3.0	3.0
Scalability	1S Only	1S Only
PCIe configurations		Up to 1x16, 2x8, 1x8+2x4
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Smart Response technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Turbo Boost Max 3.0
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Thermal Monitoring
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™)
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported		3
Wireless Display (WiDi) support
Graphics image quality
4K resolution support
Max resolution over DisplayPort		4096x2304@60Hz
Max resolution over eDP		4096x2304@60Hz
Max resolution over HDMI 1.4		4096x2304@24Hz
Max resolution over VGA		N / A
Max resolution over WiDi		1080p
Graphics API support
DirectX		12
OpenGL		4.5