AMD Athlon II X2 255 vs AMD Phenom II X2 545

Comparative analysis of AMD Athlon II X2 255 and AMD Phenom II X2 545 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Athlon II X2 255

AMD Phenom II X2 545

Differences

Reasons to consider the AMD Athlon II X2 255

CPU is newer: launch date 7 month(s) later
Around 3% higher clock speed: 3.1 GHz vs 3 GHz
2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 78% lower typical power consumption: 45 Watt vs 80 Watt
Around 4% better performance in PassMark - Single thread mark: 1234 vs 1183

Specifications (specs)
Launch date	January 2010 vs June 2009
Maximum frequency	3.1 GHz vs 3 GHz
L2 cache	2 MB vs 512 KB (per core)
Thermal Design Power (TDP)	45 Watt vs 80 Watt
Benchmarks
PassMark - Single thread mark	1234 vs 1183

Reasons to consider the AMD Phenom II X2 545

Around 4% better performance in PassMark - CPU mark: 1222 vs 1175
Around 12% better performance in Geekbench 4 - Single Core: 395 vs 353
Around 7% better performance in Geekbench 4 - Multi-Core: 703 vs 660

Benchmarks
PassMark - CPU mark	1222 vs 1175
Geekbench 4 - Single Core	395 vs 353
Geekbench 4 - Multi-Core	703 vs 660

Compare benchmarks

CPU 1: AMD Athlon II X2 255
CPU 2: AMD Phenom II X2 545

PassMark - Single thread mark

CPU 1

CPU 2

1234

1183

PassMark - CPU mark

CPU 1

CPU 2

1175

1222

Geekbench 4 - Single Core

CPU 1

CPU 2

353

395

Geekbench 4 - Multi-Core

CPU 1

CPU 2

660

703

Name	AMD Athlon II X2 255	AMD Phenom II X2 545
PassMark - Single thread mark	1234	1183
PassMark - CPU mark	1175	1222
Geekbench 4 - Single Core	353	395
Geekbench 4 - Multi-Core	660	703

Compare specifications (specs)

	AMD Athlon II X2 255	AMD Phenom II X2 545
Essentials
Architecture codename	Regor	Callisto
Family	AMD Athlon Processors
Launch date	January 2010	June 2009
Launch price (MSRP)	$60	$50
OPN PIB	AD255EHDGMBOX
OPN Tray	AD255EHDK23GM
Place in performance rating	2555	2557
Price now	$65.22	$43.98
Series	AMD Athlon II X2
Value for money (0-100)	8.34	12.80
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.1 GHz
Die size	117 mm	258 mm
L1 cache	256 KB	128 KB (per core)
L2 cache	2 MB	512 KB (per core)
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	72°C
Maximum frequency	3.1 GHz	3 GHz
Number of cores	2	2
Number of threads	2
Transistor count	410 million	758 million
Unlocked
L3 cache		6144 KB (per core)
Memory
Supported memory types	DDR3	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	AM3
Thermal Design Power (TDP)	45 Watt	80 Watt