Ryzen 9 5900XT vs Phenom X4 9550

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Aggregate performance score

Phenom X4 9550
2008
4 cores / 4 threads, 95 Watt
0.94
Ryzen 9 5900XT
2024
16 cores / 32 threads, 105 Watt
24.91
+2550%

Ryzen 9 5900XT outperforms Phenom X4 9550 by a whopping 2550% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2655234
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data71.38
Market segmentDesktop processorDesktop processor
Power efficiency0.4210.06
DesignerAMDAMD
Manufacturerno dataTSMC
Architecture codenameAgena (2007−2008)Vermeer (2020−2025)
Release dateMarch 2008 (17 years ago)31 July 2024 (1 year ago)
Launch price (MSRP)no data$349

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Performance to price scatter graph

Detailed specifications

Phenom X4 9550 and Ryzen 9 5900XT 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)16 (Hexadeca-Core)
Threads432
Base clock speedno data3.3 GHz
Boost clock speed2.2 GHz4.8 GHz
L1 cache128 KB (per core)64 KB (per core)
L2 cache512 KB (per core)512 KB (per core)
L3 cache2 MB (shared)64 MB
Chip lithography65 nm7 nm
Die size285 mm22x 74 mm2
Number of transistors450 million8,300 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier-+

Compatibility

Information on Phenom X4 9550 and Ryzen 9 5900XT 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+AM4
Power consumption (TDP)95 Watt105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom X4 9550 and Ryzen 9 5900XT. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom X4 9550 and Ryzen 9 5900XT are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom X4 9550 and Ryzen 9 5900XT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR4

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Phenom X4 9550 and Ryzen 9 5900XT.

PCIe versionno data4.0
PCI Express lanesno data20

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.

Phenom X4 9550 0.94
Ryzen 9 5900XT 24.91
+2550%

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. Other than that, Passmark measures multi-core performance.

Phenom X4 9550 1664
Ryzen 9 5900XT 43953
+2541%

Gaming performance

Pros & cons summary


Performance score 0.94 24.91
Physical cores 4 16
Threads 4 32
Chip lithography 65 nm 7 nm
Power consumption (TDP) 95 Watt 105 Watt

Phenom X4 9550 has 10.5% lower power consumption.

Ryzen 9 5900XT, on the other hand, has a 2550% higher aggregate performance score, 300% more physical cores and 700% more threads, and a 828.6% more advanced lithography process.

The AMD Ryzen 9 5900XT is our recommended choice as it beats the AMD Phenom X4 9550 in performance tests.

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AMD Phenom X4 9550
Phenom X4 9550
AMD Ryzen 9 5900XT
Ryzen 9 5900XT

Other comparisons

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Community ratings

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


3.9 171 votes

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