Athlon 64 FX-55 vs Phenom X4 9650

Aggregate performance score

Phenom X4 9650
2008
4 cores / 4 threads, 95 Watt
1.09
+336%
Athlon 64 FX-55
2004
1 core / 1 thread, 104 Watt
0.25

Phenom X4 9650 outperforms Athlon 64 FX-55 by a whopping 336% based on our aggregate benchmark results.

Primary details

Comparing Phenom X4 9650 and Athlon 64 FX-55 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking24163163
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.090.23
Architecture codenameAgena (2007−2008)Clawhammer (2001−2005)
Release dateMarch 2008 (16 years ago)10 October 2004 (20 years ago)
Launch price (MSRP)no data$180

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Phenom X4 9650 and Athlon 64 FX-55 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)1 (Single-Core)
Threads41
Base clock speedno data2.6 GHz
Boost clock speed2.3 GHz2.6 GHz
L1 cache128 KB (per core)128 KB
L2 cache512 KB (per core)1 MB
L3 cache2 MB (shared)0 KB
Chip lithography65 nm130 nm
Die size285 mm2193 mm2
Maximum case temperature (TCase)no data63 °C
Number of transistors450 million105 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+

Compatibility

Information on Phenom X4 9650 and Athlon 64 FX-55 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
SocketAM2+939
Power consumption (TDP)95 Watt104 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom X4 9650 and Athlon 64 FX-55 are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom X4 9650 and Athlon 64 FX-55. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR1 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

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.

Phenom X4 9650 1.09
+336%
Athlon 64 FX-55 0.25

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.

Phenom X4 9650 1733
+329%
Athlon 64 FX-55 404

Gaming performance

Pros & cons summary


Performance score 1.09 0.25
Physical cores 4 1
Threads 4 1
Chip lithography 65 nm 130 nm
Power consumption (TDP) 95 Watt 104 Watt

Phenom X4 9650 has a 336% higher aggregate performance score, 300% more physical cores and 300% more threads, a 100% more advanced lithography process, and 9.5% lower power consumption.

The Phenom X4 9650 is our recommended choice as it beats the Athlon 64 FX-55 in performance tests.


Should you still have questions on choice between Phenom X4 9650 and Athlon 64 FX-55, 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 Phenom X4 9650
Phenom X4 9650
AMD Athlon 64 FX-55
Athlon 64 FX-55

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.


3.8 226 votes

Rate Phenom X4 9650 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.7 3 votes

Rate Athlon 64 FX-55 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Phenom X4 9650 or Athlon 64 FX-55, agree or disagree with our judgements, or report an error or mismatch.