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AMDHDZ955FBGMBOX
AMDFD8350FRHKBOX
▲ 551,969 ▼

4 Cores, 4 Threads @3.2GHz, K10.
Release date: Q1 2009.

VS
▲ 5726,759 ▼

8 Cores, 8 Threads @4.0GHz, Piledriver.
Release date: Q4 2012.

Effective Speed 
+18%
Real World Speed
Performance profile from 354,599 user samples
Benchmark your CPU here
41,403 User Benchmarks
Best Bench: 60% Base clock 3.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 38% Base clock 3.2 GHz, turbo 3.2 GHz (avg)
Poor: 38% Great: 60%
SPEED RANK: 752nd / 1442
Gaming
Gaming 51%
Yacht
Desktop
Desktop 54%
Yacht
Workstation
Workstation 36%
Jet ski
313,196 User Benchmarks
Best Bench: 68% Base clock 4.75 GHz, turbo 4.7 GHz (avg)
Worst Bench: 48% Base clock 4 GHz, turbo 1.55 GHz (avg)
Poor: 48% Great: 68%
SPEED RANK: 568th / 1442
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 47%
Yacht
Effective Speed
Effective CPU Speed 		51.5 % 60.8 % Faster effective speed.
+18%
Average Score 
+46%
Memory
Avg. Memory Latency 		76 Pts 81 Pts Slightly lower memory latency.
+7%
1-Core
Avg. Single Core Speed 		45.5 Pts 64.3 Pts Much faster single-core speed.
+41%
2-Core
Avg. Dual Core Speed 		90.1 Pts 122 Pts Much faster dual-core speed.
+35%
4-Core
Avg. Quad Core Speed 		158 Pts 221 Pts Much faster quad-core speed.
+40%
8-Core
Avg. Octa Core Speed 		163 Pts 341 Pts Hugely faster octa-core speed.
+109%
Overclocked Score 
+38%
Memory
OC Memory Latency 		87.8 Pts 91.8 Pts +5%
1-Core
OC Single Core Speed 		54.3 Pts 73.3 Pts Much faster OC single-core speed.
+35%
2-Core
OC Dual Core Speed 		108 Pts 143 Pts Much faster OC dual-core speed.
+32%
4-Core
OC Quad Core Speed 		205 Pts 254 Pts Faster OC quad-core speed.
+24%
8-Core
OC Octa Core Speed 		207 Pts 397 Pts Hugely faster OC octa-core speed.
+92%
Value & Sentiment 
+5%
Market Share
Based on 67,717,182 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.03 % Much higher market share.
+50%
Value
Value For Money 		71.8 % 74.9 % +4%
User Rating
UBM User Rating 		55 % 57 % +4%
Price
Price (score) 		$83 Much cheaper.
+36% 		$130
Nice To Haves 
+58%
Age
Newest 		181 Months 138 Months More recent.
+24%
TDP
Thermal Design Power (TDP) 		125 Watts 125 Watts
Cores
CPU Processing Cores 		4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads 		4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process 		45 nm 32 nm Newer manufacturing.
+29%
Base Clock
Base Clock Speed 		3.2 GHz 4 GHz Faster base frequency.
+25%
Turbo Clock
Turbo Clock Speed 		3.2 GHz 4.2 GHz Much faster turbo frequency.
+31%
64-Core
OC Multi Core Speed 		207 Pts 411 Pts Hugely faster OC 64-core speed.
+99%
64-Core
Avg. Multi Core Speed 		165 Pts 353 Pts Hugely faster 64-core speed.
+114%
Specifications 
Series
CPU Architecture 		K10 Piledriver
Socket
Motherboard Socket 		AM3 AM3+
Graphics
Integrated Graphics 		None None
Conclusion 
Average Bench 51.5%
Average Bench 60.8%
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The AMD Phenom II X4 955 is a quad-core processor based on the K10 micro-architecture. When it launched in Q2 of 2009, it was AMD’s fastest CPU. Given its base clock of 3.2 GHz, with appropriate cooling, this unlocked Black Edition chip can be overclocked to speeds in excess of 4 GHz. The 955’s effective speed of 63 isn’t impressive by today’s standards, but when coupled with a decent graphics card, it won't cause major bottlenecks for most games. The 955 was pitched against the high-end of Intel’s Core 2 quads, and now costs a fraction of its original list price as one would expect, however there are better alternatives on the market now. [Dec '14 CPUPro]

MORE DETAILS

In terms of raw single-core performance the flagship AMD FX-8350 is lagging behind intel's processor line-up by over two generations. The PassMark Single Thread scores for the i5-2500K vs the FX-8350 are 1863 to 1520 which shows that in terms of raw per-core processing the FX-8350 is lagging the two year old i5 by 23%. Where the AMD FX makes up is on multi-core performance, with a score of 9156 vs 6745, the AMD leads the Intel 2500K by 36% making it the far more capable multi-threaded server orientated performer. The 8350 is also cheaper but significantly more power hungry which counts strongly against it as a server proposition. The FX-8350 could be a good fit for specific server use cases but for general consumer use, which is single and dual core intensive, Intel's two year old i5-2500K delivers better performance. [May '13 CPUPro]

MORE DETAILS

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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