Intel Core i7-3820 vs AMD A6-3670K

Comparative analysis of Intel Core i7-3820 and AMD A6-3670K processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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).

Intel Core i7-3820

AMD A6-3670K

Differences

Reasons to consider the Intel Core i7-3820

CPU is newer: launch date 2 month(s) later
Around 41% higher clock speed: 3.80 GHz vs 2.7 GHz
Around 53% better performance in PassMark - Single thread mark: 1745 vs 1144
2.7x better performance in PassMark - CPU mark: 5765 vs 2171
2.1x better performance in Geekbench 4 - Single Core: 756 vs 354
2.7x better performance in Geekbench 4 - Multi-Core: 3163 vs 1154
6x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 4.665 vs 0.777
Around 39% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.606 vs 0.435
Around 62% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 5.758 vs 3.562

Specifications (specs)
Launch date	February 2012 vs December 2011
Maximum frequency	3.80 GHz vs 2.7 GHz
Benchmarks
PassMark - Single thread mark	1745 vs 1144
PassMark - CPU mark	5765 vs 2171
Geekbench 4 - Single Core	756 vs 354
Geekbench 4 - Multi-Core	3163 vs 1154
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.665 vs 0.777
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.606 vs 0.435
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	5.758 vs 3.562

Reasons to consider the AMD A6-3670K

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2x more L1 cache, more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 30% lower typical power consumption: 100 Watt vs 130 Watt
2.5x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 214.663 vs 84.218
4.7x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 10.542 vs 2.267

Specifications (specs)
Unlocked	Unlocked vs Locked
L1 cache	128 KB (per core) vs 64 KB (per core)
L2 cache	1024 KB (per core) vs 256 KB (per core)
Thermal Design Power (TDP)	100 Watt vs 130 Watt
Benchmarks
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	214.663 vs 84.218
CompuBench 1.5 Desktop - Video Composition (Frames/s)	10.542 vs 2.267

Compare benchmarks

CPU 1: Intel Core i7-3820
CPU 2: AMD A6-3670K

PassMark - Single thread mark

CPU 1

CPU 2

1745

1144

PassMark - CPU mark

CPU 1

CPU 2

5765

2171

Geekbench 4 - Single Core

CPU 1

CPU 2

756

354

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3163

1154

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

4.665

0.777

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

CPU 1

CPU 2

84.218

214.663

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

CPU 1

CPU 2

0.606

0.435

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

2.267

10.542

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

5.758

3.562

Name	Intel Core i7-3820	AMD A6-3670K
PassMark - Single thread mark	1745	1144
PassMark - CPU mark	5765	2171
Geekbench 4 - Single Core	756	354
Geekbench 4 - Multi-Core	3163	1154
3DMark Fire Strike - Physics Score	3318
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.665	0.777
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	84.218	214.663
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.606	0.435
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.267	10.542
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	5.758	3.562

Compare specifications (specs)

	Intel Core i7-3820	AMD A6-3670K
Essentials
Architecture codename	Sandy Bridge E	Llano
Launch date	February 2012	December 2011
Launch price (MSRP)	$400
Place in performance rating	2264	2265
Price now	$199.99
Processor Number	i7-3820
Series	Intel® Core™ X-series Processors
Status	Discontinued
Value for money (0-100)	13.26
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.60 GHz
Bus Speed	5 GT/s DMI2
Die size	294 mm	228 mm
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	256 KB (per core)	1024 KB (per core)
L3 cache	10240 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum case temperature (TCase)	67 °C
Maximum core temperature	66.8°C
Maximum frequency	3.80 GHz	2.7 GHz
Number of cores	4	4
Number of threads	8
Transistor count	1270 million	1178 million
VID voltage range	0.600V – 1.350V
Unlocked
Memory
Max memory channels	4
Maximum memory bandwidth	51.2 GB/s
Maximum memory size	64.23 GB
Supported memory types	DDR3 1066/1333/1600	DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	52.5mm x 45.0mm
Sockets supported	FCLGA2011	FM1
Thermal Design Power (TDP)	130 Watt	100 Watt
Peripherals
Max number of PCIe lanes	40
PCI Express revision	2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2, Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Smart Response technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
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™)