Phenom X4 9550 vs Athlon 64 X2 4600+

Place in the ranking	2943	2445
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	2x Athlon 64 (Desktop)	no data
Power efficiency	0.66	1.04
Architecture codename	Windsor (2006−2007)	Agena (2007−2008)
Release date	no data	March 2008 (16 years ago)
Launch price (MSRP)	$350	no data

Detailed specifications

Athlon 64 X2 (Desktop) 4600+ and Phenom X4 9550 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 cores	2 (Dual-core)	4 (Quad-Core)
Threads	2	4
Boost clock speed	2.4 GHz	2.2 GHz
Bus rate	1000 MHz	no data
L1 cache	256K	128 KB (per core)
L2 cache	512 KB	512 KB (per core)
L3 cache	0 KB	2 MB (shared)
Chip lithography	90 nm	65 nm
Die size	220 mm²	285 mm²
Number of transistors	154 million	450 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon 64 X2 (Desktop) 4600+ and Phenom X4 9550 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 configuration	1	1
Socket	939	AM2+
Power consumption (TDP)	65 Watt	95 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 64 X2 (Desktop) 4600+ and Phenom X4 9550 are enumerated here.

AMD-V

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 64 X2 4600+ 0.45

Phenom X4 9550 1.04
+131%

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 64 X2 4600+ 720

Phenom X4 9550 1656
+130%

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 64 X2 4600+ 227

Phenom X4 9550 237
+4.4%

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 64 X2 4600+ 409

Phenom X4 9550 729
+78.2%

Gaming performance

Pros & cons summary

Performance score	0.45	1.04
Physical cores	2	4
Threads	2	4
Chip lithography	90 nm	65 nm
Power consumption (TDP)	65 Watt	95 Watt

Athlon 64 X2 4600+ has 46.2% lower power consumption.

Phenom X4 9550, on the other hand, has a 131.1% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 38.5% more advanced lithography process.

The Phenom X4 9550 is our recommended choice as it beats the Athlon 64 X2 4600+ in performance tests.

Should you still have questions on choice between Athlon 64 X2 4600+ and Phenom X4 9550, ask them in Comments section, and we shall answer.