AMD Phenom II X2 550 BE vs AMD Athlon 64 LE-1660

Comparative analysis of AMD Phenom II X2 550 BE and AMD Athlon 64 LE-1660 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility. Benchmark processor performance analysis: Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, PassMark - Single thread mark, PassMark - CPU mark.

AMD Phenom II X2 550 BE

AMD Athlon 64 LE-1660

Differences

Reasons to consider the AMD Phenom II X2 550 BE

CPU is newer: launch date 1 year(s) 1 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
1 more cores, run more applications at once: 2 vs 1
Around 11% higher clock speed: 3.1 GHz vs 2.8 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later

Launch date	June 2009 vs May 2008
Unlocked	Unlocked vs Locked
Number of cores	2 vs 1
Maximum frequency	3.1 GHz vs 2.8 GHz
Manufacturing process technology	45 nm vs 65 nm
L1 cache	128 KB (per core) vs 128 KB
L2 cache	512 KB (per core) vs 512 KB

Reasons to consider the AMD Athlon 64 LE-1660

Around 78% lower typical power consumption: 45 Watt vs 80 Watt

Thermal Design Power (TDP)	45 Watt vs 80 Watt

Compare benchmarks

CPU 1: AMD Phenom II X2 550 BE
CPU 2: AMD Athlon 64 LE-1660

Name	AMD Phenom II X2 550 BE	AMD Athlon 64 LE-1660
Geekbench 4 - Single Core	377
Geekbench 4 - Multi-Core	687
PassMark - Single thread mark		428
PassMark - CPU mark		416

Compare specifications (specs)

	AMD Phenom II X2 550 BE	AMD Athlon 64 LE-1660
Essentials
Architecture codename	Callisto	Lima
Launch date	June 2009	May 2008
Place in performance rating	3102	3103
Vertical segment	Desktop	Desktop
Performance
64 bit support
Die size	258 mm	77 mm
L1 cache	128 KB (per core)	128 KB
L2 cache	512 KB (per core)	512 KB
L3 cache	6144 KB (shared)
Manufacturing process technology	45 nm	65 nm
Maximum frequency	3.1 GHz	2.8 GHz
Number of cores	2	1
Transistor count	758 million	122 million
Unlocked
Memory
Supported memory types	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	AM2
Thermal Design Power (TDP)	80 Watt	45 Watt