Intel Core i7-6700 vs Intel Core i7-3820

Comparative analysis of Intel Core i7-6700 and Intel Core i7-3820 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, 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 i7-6700

Intel Core i7-3820

Differences

Reasons to consider the Intel Core i7-6700

CPU is newer: launch date 3 year(s) 6 month(s) later
Around 5% higher clock speed: 4.00 GHz vs 3.80 GHz
Around 6% higher maximum core temperature: 71°C vs 66.8°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
2x lower typical power consumption: 65 Watt vs 130 Watt
Around 31% better performance in PassMark - Single thread mark: 2281 vs 1744
Around 39% better performance in PassMark - CPU mark: 8059 vs 5779
Around 29% better performance in Geekbench 4 - Single Core: 978 vs 756
Around 20% better performance in Geekbench 4 - Multi-Core: 3792 vs 3163
Around 18% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 5.51 vs 4.665
Around 4% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 87.719 vs 84.218
Around 15% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.699 vs 0.606
Around 23% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 2.778 vs 2.267
Around 16% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 6.707 vs 5.758

Specifications (specs)
Launch date	5 August 2015 vs February 2012
Maximum frequency	4.00 GHz vs 3.80 GHz
Maximum core temperature	71°C vs 66.8°C
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	65 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	2281 vs 1744
PassMark - CPU mark	8059 vs 5779
Geekbench 4 - Single Core	978 vs 756
Geekbench 4 - Multi-Core	3792 vs 3163
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.51 vs 4.665
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	87.719 vs 84.218
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.699 vs 0.606
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.778 vs 2.267
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	6.707 vs 5.758

Reasons to consider the Intel Core i7-3820

Around 25% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 17% better performance in 3DMark Fire Strike - Physics Score: 3318 vs 2838

Specifications (specs)
L3 cache	10240 KB (shared) vs 8 MB
Maximum memory size	64.23 GB vs 64 GB
Benchmarks
3DMark Fire Strike - Physics Score	3318 vs 2838

Compare benchmarks

CPU 1: Intel Core i7-6700
CPU 2: Intel Core i7-3820

PassMark - Single thread mark

CPU 1

CPU 2

2281

1744

PassMark - CPU mark

CPU 1

CPU 2

8059

5779

Geekbench 4 - Single Core

CPU 1

CPU 2

978

756

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3792

3163

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

2838

3318

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

5.51

4.665

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

CPU 1

CPU 2

87.719

84.218

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

CPU 1

CPU 2

0.699

0.606

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

2.778

2.267

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

6.707

5.758

Name	Intel Core i7-6700	Intel Core i7-3820
PassMark - Single thread mark	2281	1744
PassMark - CPU mark	8059	5779
Geekbench 4 - Single Core	978	756
Geekbench 4 - Multi-Core	3792	3163
3DMark Fire Strike - Physics Score	2838	3318
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	5.51	4.665
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	87.719	84.218
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.699	0.606
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.778	2.267
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	6.707	5.758
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 i7-6700	Intel Core i7-3820
Essentials
Architecture codename	Skylake	Sandy Bridge E
Launch date	5 August 2015	February 2012
Launch price (MSRP)	$303	$400
Place in performance rating	1395	2236
Price now	$340.56	$199.99
Processor Number	i7-6700	i7-3820
Series	6th Generation Intel® Core™ i7 Processors	Intel® Core™ X-series Processors
Status	Launched	Discontinued
Value for money (0-100)	8.66	13.26
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.40 GHz	3.60 GHz
Bus Speed	8 GT/s DMI3	5 GT/s DMI2
L1 cache	256 KB	64 KB (per core)
L2 cache	1 MB	256 KB (per core)
L3 cache	8 MB	10240 KB (shared)
Manufacturing process technology	14 nm	32 nm
Maximum case temperature (TCase)	72 °C	67 °C
Maximum core temperature	71°C	66.8°C
Maximum frequency	4.00 GHz	3.80 GHz
Number of cores	4	4
Number of threads	8	8
Die size		294 mm
Transistor count		1270 million
VID voltage range		0.600V – 1.350V
Memory
Max memory channels	2	4
Maximum memory bandwidth	34.1 GB/s	51.2 GB/s
Maximum memory size	64 GB	64.23 GB
Supported memory types	DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V	DDR3 1066/1333/1600
Graphics
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
Processor graphics	Intel® HD Graphics 530
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
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	52.5mm x 45.0mm
Sockets supported	FCLGA1151	FCLGA2011
Thermal Design Power (TDP)	65 Watt	130 Watt
Thermal Solution	PCG 2015C (65W)
Peripherals
Max number of PCIe lanes	16	40
PCI Express revision	3.0	2.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.2, Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Demand Based Switching
Intel® Smart Response technology
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)