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AMDHDZ955FBGMBOX
AMDFD4300WMHKBOX
▲ 551,970 ▼

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

VS
▲ 543,580 ▼

4 Cores, 4 Threads @3.8GHz, Piledriver.
Release date: Q4 2012.

Effective Speed 
+0%
Real World Speed
Performance profile from 96,857 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
55,454 User Benchmarks
Best Bench: 60% Base clock 3.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 36% Base clock 3.8 GHz, turbo 2.1 GHz (avg)
Poor: 36% Great: 60%
SPEED RANK: 744th / 1442
Gaming
Gaming 52%
Yacht
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 36%
Jet ski
Effective Speed
Effective CPU Speed 		51.5 % 51.6 % +0%
Average Score 
+7%
Memory
Avg. Memory Latency 		76 Pts 77.2 Pts +2%
1-Core
Avg. Single Core Speed 		45.5 Pts 57.2 Pts Faster single-core speed.
+26%
2-Core
Avg. Dual Core Speed 		90.1 Pts 102 Pts Faster dual-core speed.
+13%
4-Core
Avg. Quad Core Speed 		158 Pts +3% 153 Pts
8-Core
Avg. Octa Core Speed 		163 Pts +1% 161 Pts
Overclocked Score 
+8%
Memory
OC Memory Latency 		87.8 Pts 89.1 Pts +1%
1-Core
OC Single Core Speed 		54.3 Pts 69.5 Pts Faster OC single-core speed.
+28%
2-Core
OC Dual Core Speed 		108 Pts 127 Pts Faster OC dual-core speed.
+18%
4-Core
OC Quad Core Speed 		205 Pts +2% 200 Pts
8-Core
OC Octa Core Speed 		207 Pts +4% 200 Pts
Value & Sentiment 
+28%
Market Share
Based on 67,803,645 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.02 % Hugely higher market share.
+100%
Value
Value For Money 		71.8 % 74.5 % +4%
User Rating
UBM User Rating 		55 % +2% 54 %
Price
Price (score) 		$83 $73 Cheaper.
+12%
Nice To Haves 
+13%
Age
Newest 		182 Months 139 Months More recent.
+24%
TDP
Thermal Design Power (TDP) 		125 Watts 95 Watts More energy efficient.
+24%
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		4 threads 4 threads
Lithography
Manufacturing process 		45 nm 32 nm Newer manufacturing.
+29%
Base Clock
Base Clock Speed 		3.2 GHz 3.8 GHz Faster base frequency.
+19%
Turbo Clock
Turbo Clock Speed 		3.2 GHz 4 GHz Faster turbo frequency.
+25%
64-Core
OC Multi Core Speed 		207 Pts +4% 200 Pts
64-Core
Avg. Multi Core Speed 		165 Pts +2% 162 Pts
Specifications 
Series
CPU Architecture 		K10 Piledriver
Socket
Motherboard Socket 		AM3 AM3+
Graphics
Integrated Graphics 		None None
Conclusion 
Average Bench 51.5%
Average Bench 51.6%
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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

The AMD FX-4300 is a budget quad-core processor which unlike its predecessor, the Bulldozer FX-4100, is based on the Piledriver micro-architecture which was released in Q4 of 2012. Its base clock speed of 3.8 GHz boosts to 4.0 GHz in turbo mode and with appropriate cooling can be overclocked to speeds of over 4.5 GHz. Even though these numbers are impressive, the real world effective speed is only 66. This is ok for general computing and even gaming when coupled with an appropriate GPU. The user experience will, however, be noticeably snappier with a CPU that has better single-core performance. Whilst the FX-4300 is cheap, it’s not so differently priced from the hexa core FX-6300 which offers significantly improved multi-core performance. [Nov '14 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 - User sentiment trumps benchmarks for this comparison.
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  • - Reports are generated and presented on userbenchmark.com
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $254Nvidia RTX 4060 $300Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $37SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $64G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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