Phenom II X2 B55 vs Athlon II X3 455

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Aggregate performance score

Athlon II X3 455
2010
3 cores / 3 threads, 95 Watt
1.21
+59.2%

Athlon II X3 455 outperforms Phenom II X2 B55 by an impressive 59% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X3 455 and Phenom II X2 B55 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking22432546
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.522.02
Market segmentDesktop processorDesktop processor
Architecture codenameRana (2009−2011)Callisto (2009−2010)
Release date7 December 2010 (13 years ago)October 2009 (14 years ago)
Launch price (MSRP)$88$48
Current price$25 (0.3x MSRP)$28 (0.6x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Athlon II X3 455 has 173% better value for money than Phenom II X2 B55.

Detailed specifications

Athlon II X3 455 and Phenom II X2 B55 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 cores3 (Tri-Core)2 (Dual-core)
Threads32
Base clock speed3.3 GHzno data
Boost clock speed3.3 GHz3 GHz
L1 cache128 KB (per core)128 KB (per core)
L2 cache512 KB (per core)512 KB (per core)
L3 cache0 KB6 MB (shared)
Chip lithography45 nm45 nm
Die size169 mm2258 mm2
Number of transistors300 million758 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Athlon II X3 455 and Phenom II X2 B55 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
SocketAM3AM3
Power consumption (TDP)95 Watt80 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X3 455 and Phenom II X2 B55. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

Peripherals

Specifications and connection of peripherals supported by Athlon II X3 455 and Phenom II X2 B55.

PCIe version2.0no data

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 X3 455 1.21
+59.2%
Phenom II X2 B55 0.76

Athlon II X3 455 outperforms Phenom II X2 B55 by 59% based on our aggregate benchmark results.


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.

Benchmark coverage: 68%

Athlon II X3 455 1879
+58.8%
Phenom II X2 B55 1183

Athlon II X3 455 outperforms Phenom II X2 B55 by 59% in Passmark.

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.

Benchmark coverage: 42%

Athlon II X3 455 348
Phenom II X2 B55 383
+10.1%

Phenom II X2 B55 outperforms Athlon II X3 455 by 10% in GeekBench 5 Single-Core.

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.

Benchmark coverage: 42%

Athlon II X3 455 855
+24.5%
Phenom II X2 B55 687

Athlon II X3 455 outperforms Phenom II X2 B55 by 24% in GeekBench 5 Multi-Core.

Gaming performance

Pros & cons summary


Performance score 1.21 0.76
Physical cores 3 2
Threads 3 2
Cost $88 $48
Power consumption (TDP) 95 Watt 80 Watt

The Athlon II X3 455 is our recommended choice as it beats the Phenom II X2 B55 in performance tests.


Should you still have questions on choice between Athlon II X3 455 and Phenom II X2 B55, ask them in Comments section, and we shall answer.

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AMD Athlon II X3 455
Athlon II X3 455
AMD Phenom II X2 B55
Phenom II X2 B55

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Community ratings

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


3.4 156 votes

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3.8 32 votes

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Questions & comments

Here you can ask a question about Athlon II X3 455 or Phenom II X2 B55, agree or disagree with our judgements, or report an error or mismatch.