AMD Athlon II X4 640 vs Intel Core 2 Duo E8400

Comparative analysis of AMD Athlon II X4 640 and Intel Core 2 Duo E8400 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, 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 - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Video Composition (Frames/s).

AMD Athlon II X4 640

Intel Core 2 Duo E8400

Differences

Reasons to consider the AMD Athlon II X4 640

CPU is newer: launch date 2 year(s) 3 month(s) later
2 more cores, run more applications at once: 4 vs 2
4x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 86% better performance in PassMark - CPU mark: 2245 vs 1204
Around 61% better performance in Geekbench 4 - Multi-Core: 1191 vs 738
8.4x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.776 vs 0.33
Around 72% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.17 vs 0.099
Around 68% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.052 vs 2.408

Specifications (specs)
Launch date	May 2010 vs January 2008
Number of cores	4 vs 2
L1 cache	128 KB (per core) vs 128 KB
Benchmarks
PassMark - CPU mark	2245 vs 1204
Geekbench 4 - Multi-Core	1191 vs 738
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.776 vs 0.33
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.17 vs 0.099
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.052 vs 2.408

Reasons to consider the Intel Core 2 Duo E8400

3x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 46% lower typical power consumption: 65 Watt vs 95 Watt
Around 2% better performance in PassMark - Single thread mark: 1237 vs 1212
Around 18% better performance in Geekbench 4 - Single Core: 422 vs 358
3.5x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 26.311 vs 7.618

Specifications (specs)
L2 cache	6144 KB vs 512 KB (per core)
Thermal Design Power (TDP)	65 Watt vs 95 Watt
Benchmarks
PassMark - Single thread mark	1237 vs 1212
Geekbench 4 - Single Core	422 vs 358
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	26.311 vs 7.618

Compare benchmarks

CPU 1: AMD Athlon II X4 640
CPU 2: Intel Core 2 Duo E8400

PassMark - Single thread mark

CPU 1

CPU 2

1212

1237

PassMark - CPU mark

CPU 1

CPU 2

2245

1204

Geekbench 4 - Single Core

CPU 1

CPU 2

358

422

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1191

738

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

2.776

0.33

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

CPU 1

CPU 2

7.618

26.311

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

CPU 1

CPU 2

0.17

0.099

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

4.052

2.408

Name	AMD Athlon II X4 640	Intel Core 2 Duo E8400
PassMark - Single thread mark	1212	1237
PassMark - CPU mark	2245	1204
Geekbench 4 - Single Core	358	422
Geekbench 4 - Multi-Core	1191	738
3DMark Fire Strike - Physics Score	0	2400
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.776	0.33
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	7.618	26.311
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.17	0.099
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.052	2.408
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.68

Compare specifications (specs)

	AMD Athlon II X4 640	Intel Core 2 Duo E8400
Essentials
Architecture codename	Propus	Wolfdale
Launch date	May 2010	January 2008
Launch price (MSRP)	$80
Place in performance rating	3020	3024
Price now	$239.95	$129.95
Value for money (0-100)	4.07	4.87
Vertical segment	Desktop	Desktop
Processor Number		E8400
Series		Legacy Intel® Core™ Processors
Status		Discontinued
Performance
64 bit support
Die size	169 mm	107 mm2
L1 cache	128 KB (per core)	128 KB
L2 cache	512 KB (per core)	6144 KB
Manufacturing process technology	45 nm	45 nm
Maximum frequency	3 GHz	3 GHz
Number of cores	4	2
Transistor count	300 million	410 million
Base frequency		3.00 GHz
Bus Speed		1333 MHz FSB
Maximum case temperature (TCase)		72 °C
Maximum core temperature		72.4°C
VID voltage range		0.8500V-1.3625V
Memory
Supported memory types	DDR3	DDR1, DDR2, DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	LGA775
Thermal Design Power (TDP)	95 Watt	65 Watt
Low Halogen Options Available
Package Size		37.5mm x 37.5mm
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)