Phenom II X2 550 vs Athlon 64 TF-20

Place in the ranking	3301	2684
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.04
Market segment	Laptop	Desktop processor
Series	AMD Athlon 64	no data
Power efficiency	0.61	0.86
Architecture codename	Sherman (2009)	Callisto (2009−2010)
Release date	1 May 2009 (15 years ago)	4 November 2009 (15 years ago)
Launch price (MSRP)	no data	$133

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon 64 TF-20 and Phenom II X2 550 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	1 (Single-Core)	2 (Dual-core)
Threads	1	2
Base clock speed	no data	3.1 GHz
Boost clock speed	1.6 GHz	3.1 GHz
Bus rate	667 MHz	no data
L1 cache	0.1 MB	128 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	no data	6 MB (shared)
Chip lithography	65 nm	45 nm
Die size	no data	258 mm²
Maximum core temperature	95 °C	no data
Number of transistors	no data	758 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon 64 TF-20 and Phenom II X2 550 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	no data	1
Socket	S1g1	AM3
Power consumption (TDP)	25 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon 64 TF-20 and Phenom II X2 550. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, 3DNow!, SSE, SSE2, SSE3, AMD64, Enhanced Virus Protection	no data
VirusProtect	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 64 TF-20 and Phenom II X2 550 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 TF-20 and Phenom II X2 550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Athlon 64 TF-20 and Phenom II X2 550.

PCIe version

no data

2.0

Gaming performance

Pros & cons summary

Performance score	0.16	0.73
Recency	1 May 2009	4 November 2009
Physical cores	1	2
Threads	1	2
Chip lithography	65 nm	45 nm
Power consumption (TDP)	25 Watt	80 Watt

Athlon 64 TF-20 has 220% lower power consumption.

Phenom II X2 550, on the other hand, has a 356.3% higher aggregate performance score, an age advantage of 6 months, 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.

The Phenom II X2 550 is our recommended choice as it beats the Athlon 64 TF-20 in performance tests.

Be aware that Athlon 64 TF-20 is a notebook processor while Phenom II X2 550 is a desktop one.

Should you still have questions on choice between Athlon 64 TF-20 and Phenom II X2 550, ask them in Comments section, and we shall answer.