Athlon II X2 255 vs Athlon X2 340

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Aggregate performance score

Athlon X2 340
2012
2 cores / 2 threads, 65 Watt
0.82
+10.8%
Athlon II X2 255
2010
2 cores / 2 threads, 65 Watt
0.74

Athlon X2 340 outperforms Athlon II X2 255 by a moderate 11% based on our aggregate benchmark results.

Primary details

Comparing Athlon X2 340 and Athlon II X2 255 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking25972679
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.02
Market segmentDesktop processorDesktop processor
Power efficiency1.191.08
Architecture codenameTrinity (2012−2013)Regor (2009−2013)
Release date2 October 2012 (12 years ago)25 January 2010 (14 years ago)
Launch price (MSRP)no data$60

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon X2 340 and Athlon II X2 255 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 cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed3.2 GHz3.1 GHz
Boost clock speed3.6 GHz3.1 GHz
L1 cache96K128 KB
L2 cache1 MB (shared)1 MB
L3 cacheno data0 KB
Chip lithography32 nm45 nm
Die size246 mm2117 mm2
Maximum case temperature (TCase)74 °Cno data
Number of transistors1,303 million410 million
64 bit support++
Windows 11 compatibilityno data-

Compatibility

Information on Athlon X2 340 and Athlon II X2 255 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 configuration11
SocketFM2AM3
Power consumption (TDP)65 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X2 340 and Athlon II X2 255. You'll probably need this information if you require some particular technology.

AES-NI+-
FMA+-
AVX+-

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X2 340 and Athlon II X2 255 are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X2 340 and Athlon II X2 255. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1600DDR3

Peripherals

Specifications and connection of peripherals supported by Athlon X2 340 and Athlon II X2 255.

PCIe version2.02.0

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 X2 340 0.82
+10.8%
Athlon II X2 255 0.74

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 X2 340 1310
+11.5%
Athlon II X2 255 1175

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 X2 340 300
+2.4%
Athlon II X2 255 293

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 X2 340 422
+4.7%
Athlon II X2 255 403

Gaming performance

Pros & cons summary


Performance score 0.82 0.74
Recency 2 October 2012 25 January 2010
Chip lithography 32 nm 45 nm

Athlon X2 340 has a 10.8% higher aggregate performance score, an age advantage of 2 years, and a 40.6% more advanced lithography process.

The Athlon X2 340 is our recommended choice as it beats the Athlon II X2 255 in performance tests.


Should you still have questions on choice between Athlon X2 340 and Athlon II X2 255, ask them in Comments section, and we shall answer.

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AMD Athlon X2 340
Athlon X2 340
AMD Athlon II X2 255
Athlon II X2 255

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.6 11 votes

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Questions & comments

Here you can ask a question about Athlon X2 340 or Athlon II X2 255, agree or disagree with our judgements, or report an error or mismatch.