Athlon II X2 245e vs Athlon II X2 255

Place in the ranking	2658	2661
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.02	4.36
Market segment	Desktop processor	Desktop processor
Power efficiency	1.08	1.56
Architecture codename	Regor (2009−2013)	Regor (2009−2013)
Release date	25 January 2010 (14 years ago)	11 May 2010 (14 years ago)
Launch price (MSRP)	$60	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Athlon II X2 245e has 21700% better value for money than Athlon II X2 255.

Detailed specifications

Athlon II X2 255 and Athlon II X2 245e 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Base clock speed	3.1 GHz	2.9 GHz
Boost clock speed	3.1 GHz	2.9 GHz
L1 cache	128 KB	128 KB
L2 cache	1 MB	1 MB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	45 nm
Die size	117 mm²	117 mm²
Number of transistors	410 million	410 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon II X2 255 and Athlon II X2 245e 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	1	1
Socket	AM3	AM3
Power consumption (TDP)	65 Watt	45 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X2 255 and Athlon II X2 245e. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

Peripherals

Specifications and connection of peripherals supported by Athlon II X2 255 and Athlon II X2 245e.

PCIe version

2.0

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Athlon II X2 255 0.77

Athlon II X2 245e 0.77

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Athlon II X2 255 1175
+0.3%

Athlon II X2 245e 1171

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Athlon II X2 255 293

Athlon II X2 245e 362
+23.5%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Athlon II X2 255 403

Athlon II X2 245e 650
+61.3%