Phenom II X2 550 vs Athlon II X4 740

VS

Aggregate performance score

Athlon II X4 740
2012
4 cores / 4 threads, 65 Watt
1.69
+132%
Phenom II X2 550
2009
2 cores / 2 threads, 80 Watt
0.73

Athlon II X4 740 outperforms Phenom II X2 550 by a whopping 132% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X4 740 and Phenom II X2 550 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking20662683
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.04
Market segmentDesktop processorDesktop processor
SeriesAthlonno data
Power efficiencyno data0.86
Architecture codenamePiledriverCallisto (2009−2010)
Release date1 October 2012 (12 years ago)4 November 2009 (15 years ago)
Launch price (MSRP)$71$133

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X4 740 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 cores4 (Quad-Core)2 (Dual-core)
Threads42
Base clock speed3.2 GHz3.1 GHz
Boost clock speed3.7 GHz3.1 GHz
L1 cache192 KB128 KB (per core)
L2 cache4 MB512 KB (per core)
L3 cacheno data6 MB (shared)
Chip lithography32 nm45 nm
Die sizeno data258 mm2
Number of transistorsno data758 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Athlon II X4 740 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 configuration11
SocketSocket FM2AM3
Power consumption (TDP)65 watt80 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 740 and Phenom II X2 550 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 740 and Phenom II X2 550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 740 and Phenom II X2 550.

PCIe versionno data2.0

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 X4 740 1.69
+132%
Phenom II X2 550 0.73

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 X4 740 2677
+129%
Phenom II X2 550 1167

Gaming performance

Pros & cons summary


Performance score 1.69 0.73
Physical cores 4 2
Threads 4 2
Chip lithography 32 nm 45 nm
Power consumption (TDP) 65 Watt 80 Watt

Athlon II X4 740 has a 131.5% higher aggregate performance score, 100% more physical cores and 100% more threads, a 40.6% more advanced lithography process, and 23.1% lower power consumption.

The Athlon II X4 740 is our recommended choice as it beats the Phenom II X2 550 in performance tests.


Should you still have questions on choice between Athlon II X4 740 and Phenom II X2 550, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Athlon II X4 740
Athlon II X4 740
AMD Phenom II X2 550
Phenom II X2 550

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


4 101 vote

Rate Athlon II X4 740 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.6 150 votes

Rate Phenom II X2 550 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Athlon II X4 740 or Phenom II X2 550, agree or disagree with our judgements, or report an error or mismatch.