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IntelBX80646I74790
AMDFD8320FRHKBOX
▲ 618,671 ▼

4 Cores, 8 Threads @3.6GHz, Haswell.
Release date: Q2 2014.

VS
▲ 564,753 ▼

8 Cores, 8 Threads @3.5GHz, Piledriver.
Release date: Q4 2012.

Effective Speed 
+22%
Real World Speed
Performance profile from 361,481 user samples
Benchmark your CPU here
255,027 User Benchmarks
Best Bench: 80% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 58% Base clock 3.6 GHz, turbo 1.5 GHz (avg)
Poor: 58% Great: 80%
SPEED RANK: 391st / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
106,454 User Benchmarks
Best Bench: 65% Base clock 4.5 GHz, turbo 4.5 GHz (avg)
Worst Bench: 47% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 47% Great: 65%
SPEED RANK: 630th / 1468
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 60%
Destroyer
Workstation
Workstation 45%
Speed boat
Effective Speed
Effective CPU Speed 		71.4 % Faster effective speed.
+22% 		58.5 %
Average Score 
+52%
Memory
Avg. Memory Latency 		82.6 Pts +3% 80.5 Pts
1-Core
Avg. Single Core Speed 		98.4 Pts Much faster single-core speed.
+67% 		58.8 Pts
2-Core
Avg. Dual Core Speed 		187 Pts Much faster dual-core speed.
+67% 		112 Pts
4-Core
Avg. Quad Core Speed 		327 Pts Much faster quad-core speed.
+64% 		200 Pts
8-Core
Avg. Octa Core Speed 		482 Pts Much faster octa-core speed.
+58% 		306 Pts
Overclocked Score 
+46%
Memory
OC Memory Latency 		93.6 Pts +3% 90.9 Pts
1-Core
OC Single Core Speed 		109 Pts Much faster OC single-core speed.
+58% 		68.9 Pts
2-Core
OC Dual Core Speed 		214 Pts Much faster OC dual-core speed.
+62% 		132 Pts
4-Core
OC Quad Core Speed 		377 Pts Much faster OC quad-core speed.
+60% 		236 Pts
8-Core
OC Octa Core Speed 		551 Pts Much faster OC octa-core speed.
+49% 		371 Pts
Value & Sentiment 
+160%
Market Share
Based on 69,024,076 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.65 % Hugely higher market share.
+622% 		0.09 %
Value
Value For Money 		93.6 % Better value.
+19% 		78.6 %
User Rating
UBM User Rating 		61 % Slightly more popular.
+9% 		56 %
Price
Price (score) 		$104 $95 Slightly cheaper.
+9%
Nice To Haves 
+9%
Age
Newest 		126 Months More recent.
+13% 		145 Months
TDP
Thermal Design Power (TDP) 		84 Watts Much more energy efficient.
+33% 		125 Watts
Cores
CPU Processing Cores 		4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads 		8 threads 8 threads
Lithography
Manufacturing process 		22 nm Much newer manufacturing.
+31% 		32 nm
Base Clock
Base Clock Speed 		3.6 GHz +3% 3.5 GHz
Turbo Clock
Turbo Clock Speed 		4 GHz 4 GHz
64-Core
OC Multi Core Speed 		556 Pts Much faster OC 64-core speed.
+46% 		382 Pts
64-Core
Avg. Multi Core Speed 		495 Pts Much faster 64-core speed.
+56% 		318 Pts
Specifications 
Series
CPU Architecture 		Haswell Piledriver
Socket
Motherboard Socket 		FCLGA1150 AM3+
Graphics
Integrated Graphics 		HD 4600 None
Conclusion 
Average Bench 71.4%
Average Bench 58.5%

The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

MORE DETAILS

The AMD FX-8320 has the same architecture and specs as the FX-8350, the only difference being the base/turbo clocks of 3.5/4.0 GHz for the 8320 vs 4.0/4.2 GHz for the 8350. Comparing the two models shows that the 8320 lags the 8350 at stock speeds by around 10% but broadly matches it when both processors are overclocked. This combined with the 8320's considerably lower price tag makes the 8320 the better value proposition. In terms of outright performance, as with all AMD CPUs, the FX series have very strong multi-core performance but lag Intel considerably in terms of single and dual-core throughput. [Mar '14 CPUPro]

MORE DETAILS

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