AMD Phenom II X2 B55 vs Intel Pentium 4 HT 521

Comparative analysis of AMD Phenom II X2 B55 and Intel Pentium 4 HT 521 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, 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 Phenom II X2 B55

Intel Pentium 4 HT 521

Differences

Reasons to consider the AMD Phenom II X2 B55

CPU is newer: launch date 4 year(s) 3 month(s) later
1 more cores, run more applications at once: 2 vs 1
Around 7% higher clock speed: 3 GHz vs 2.8 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 90 nm
16x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 5% lower typical power consumption: 80 Watt vs 84 Watt
2.3x better performance in Geekbench 4 - Single Core: 1851 vs 801
3.2x better performance in Geekbench 4 - Multi-Core: 2854 vs 906

Specifications (specs)
Launch date	October 2009 vs June 2005
Number of cores	2 vs 1
Maximum frequency	3 GHz vs 2.8 GHz
Manufacturing process technology	45 nm vs 90 nm
L1 cache	128 KB (per core) vs 16 KB
Thermal Design Power (TDP)	80 Watt vs 84 Watt
Benchmarks
Geekbench 4 - Single Core	1851 vs 801
Geekbench 4 - Multi-Core	2854 vs 906

Compare benchmarks

CPU 1: AMD Phenom II X2 B55
CPU 2: Intel Pentium 4 HT 521

Geekbench 4 - Single Core

CPU 1

CPU 2

1851

801

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2854

906

Name	AMD Phenom II X2 B55	Intel Pentium 4 HT 521
PassMark - Single thread mark	1201
PassMark - CPU mark	1183
Geekbench 4 - Single Core	1851	801
Geekbench 4 - Multi-Core	2854	906
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	3.707
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	10.41
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.191
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.318
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.556

Compare specifications (specs)

	AMD Phenom II X2 B55	Intel Pentium 4 HT 521
Essentials
Architecture codename	Callisto	Prescott
Launch date	October 2009	June 2005
Launch price (MSRP)	$48
Place in performance rating	2504	2526
Price now	$48
Value for money (0-100)	11.85
Vertical segment	Desktop	Desktop
Processor Number		521
Series		Legacy Intel® Pentium® Processor
Status		Discontinued
Performance
64 bit support
Die size	258 mm	112 mm2
L1 cache	128 KB (per core)	16 KB
L2 cache	512 KB (per core)	1024 KB
L3 cache	6144 KB (shared)
Manufacturing process technology	45 nm	90 nm
Maximum frequency	3 GHz	2.8 GHz
Number of cores	2	1
Transistor count	758 million	125 million
Base frequency		2.80 GHz
Bus Speed		800 MHz FSB
Maximum core temperature		67.7°C
VID voltage range		1.200V-1.425V
Memory
Supported memory types	DDR3	DDR1, DDR2, DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	PLGA775
Thermal Design Power (TDP)	80 Watt	84 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
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)