AMD A4-3420 vs Intel Core i7-975

Comparative analysis of AMD A4-3420 and Intel Core i7-975 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization, Security & Reliability, Advanced Technologies. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 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).

AMD A4-3420

Intel Core i7-975

Differences

Reasons to consider the AMD A4-3420

CPU is newer: launch date 2 year(s) 6 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
2x lower typical power consumption: 65 Watt vs 130 Watt

Launch date	December 2011 vs June 2009
Manufacturing process technology	32 nm vs 45 nm
Thermal Design Power (TDP)	65 Watt vs 130 Watt

Reasons to consider the Intel Core i7-975

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more cores, run more applications at once: 4 vs 2
Around 29% higher clock speed: 3.60 GHz vs 2.8 GHz
Around 34% better performance in PassMark - Single thread mark: 1501 vs 1119
3.3x better performance in PassMark - CPU mark: 3510 vs 1067
Around 76% better performance in Geekbench 4 - Single Core: 606 vs 345
3.9x better performance in Geekbench 4 - Multi-Core: 2380 vs 612

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	4 vs 2
Maximum frequency	3.60 GHz vs 2.8 GHz
Benchmarks
PassMark - Single thread mark	1501 vs 1119
PassMark - CPU mark	3510 vs 1067
Geekbench 4 - Single Core	606 vs 345
Geekbench 4 - Multi-Core	2380 vs 612

Compare benchmarks

CPU 1: AMD A4-3420
CPU 2: Intel Core i7-975

PassMark - Single thread mark

CPU 1

CPU 2

1119

1501

PassMark - CPU mark

CPU 1

CPU 2

1067

3510

Geekbench 4 - Single Core

CPU 1

CPU 2

345

606

Geekbench 4 - Multi-Core

CPU 1

CPU 2

612

2380

Name	AMD A4-3420	Intel Core i7-975
PassMark - Single thread mark	1119	1501
PassMark - CPU mark	1067	3510
Geekbench 4 - Single Core	345	606
Geekbench 4 - Multi-Core	612	2380
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.084
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		63.217
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.376
CompuBench 1.5 Desktop - Video Composition (Frames/s)		1.858
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.196

Compare specifications (specs)

	AMD A4-3420	Intel Core i7-975
Essentials
Architecture codename	Llano	Bloomfield
Launch date	December 2011	June 2009
Place in performance rating	2628	2599
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$476
Price now		$179.99
Processor Number		i7-975
Series		Legacy Intel® Core™ Processors
Status		Discontinued
Value for money (0-100)		10.04
Performance
64 bit support
Die size	228 mm	263 mm2
L1 cache	128 KB (per core)	64 KB (per core)
L2 cache	512 KB (per core)	256 KB (per core)
Manufacturing process technology	32 nm	45 nm
Maximum frequency	2.8 GHz	3.60 GHz
Number of cores	2	4
Transistor count	1178 million	731 million
Base frequency		3.33 GHz
Bus Speed		6.4 GT/s QPI
Front-side bus (FSB)		1333 MHz
L3 cache		8192 KB (shared)
Maximum core temperature		67.9°C
Number of QPI Links		1
Number of threads		8
Unlocked
VID voltage range		0.800V-1.375V
Memory
Supported memory types	DDR3	DDR3 800/1066
Max memory channels		3
Maximum memory bandwidth		25.6 GB/s
Maximum memory size		24 GB
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	FM1	FCLGA1366
Thermal Design Power (TDP)	65 Watt	130 Watt
Low Halogen Options Available
Package Size		42.5mm x 45.0mm
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)		36-bit
Thermal Monitoring