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IntelBX80646I74790
IntelBX80633I74820K
▲ 618,583 ▼

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

VS
▲ 552,296 ▼

4 Cores, 8 Threads @3.7GHz, Ivy Bridge-E.
Release date: Q3 2013.

Effective Speed 
+1%
Real World Speed
Performance profile from 278,196 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: 379th / 1452
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
23,169 User Benchmarks
Best Bench: 81% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 61% Base clock 3.7 GHz, turbo 3.75 GHz (avg)
Poor: 61% Great: 81%
SPEED RANK: 369th / 1452
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed 		71.4 % 71.8 % +1%
Average Score 
+2%
Memory
Avg. Memory Latency 		82.6 Pts 84.7 Pts +3%
1-Core
Avg. Single Core Speed 		98.4 Pts +5% 94 Pts
2-Core
Avg. Dual Core Speed 		187 Pts +3% 182 Pts
4-Core
Avg. Quad Core Speed 		327 Pts +2% 320 Pts
8-Core
Avg. Octa Core Speed 		482 Pts +1% 477 Pts
Overclocked Score 
+4%
Memory
OC Memory Latency 		93.6 Pts 94 Pts +0%
1-Core
OC Single Core Speed 		109 Pts 116 Pts Slightly faster OC single-core speed.
+6%
2-Core
OC Dual Core Speed 		214 Pts 217 Pts +1%
4-Core
OC Quad Core Speed 		377 Pts 392 Pts +4%
8-Core
OC Octa Core Speed 		551 Pts 581 Pts Slightly faster OC octa-core speed.
+5%
Value & Sentiment 
+22%
Market Share
Based on 68,066,882 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.65 % Hugely higher market share.
+103% 		0.32 %
Value
Value For Money 		87.1 % 92.7 % Slightly better value.
+6%
User Rating
UBM User Rating 		61 % More popular.
+11% 		55 %
Price
Price (score) 		$135 $110 Cheaper.
+19%
Nice To Haves 
+4%
Age
Newest 		121 Months Slightly more recent.
+6% 		129 Months
TDP
Thermal Design Power (TDP) 		84 Watts Much more energy efficient.
+35% 		130 Watts
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		8 threads 8 threads
Lithography
Manufacturing process 		22 nm 22 nm
Base Clock
Base Clock Speed 		3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed 		4 GHz +3% 3.9 GHz
64-Core
OC Multi Core Speed 		556 Pts 583 Pts +5%
64-Core
Avg. Multi Core Speed 		495 Pts +2% 487 Pts
Specifications 
Series
CPU Architecture 		Haswell Ivy Bridge-E
Socket
Motherboard Socket 		FCLGA1150 FCLGA2011
Graphics
Integrated Graphics 		HD 4600 None
Launch Date
Launch Date 		Q2'14 Q3'13
Cache
Cache 		8 MB SmartCache 10 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 SSE4.2, AVX, AES
Recommended Price
Recommended Customer Price 		$303.00 - $312.00 N/A
Max Turbo Frequency
Max Turbo Frequency 		4 GHz 3.9 GHz
Max Memory Size
Max Memory Size (dependent on memory type) 		32 GB 64 GB
Memory Types
Memory Types 		DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR3 1333/1600/1866
Memory Channels
Max # of Memory Channels 		2 4
Memory Bandwidth
Max Memory Bandwidth 		25.6 GB/s 59.7 GB/s
Package Size
Package Size 		37.5mm x 37.5mm 52.5mm x 45.0mm
vPro Tech
Intel® vPro™ Technology ‡ 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No
PCI Express Revision
PCI Express Revision 		Up to 3.0 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		16 40

More specs » More specs »
Conclusion 
Average Bench 71.4%
Average Bench 71.8%
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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

This is yet another processor from Intel that demonstrates their total market domination in the high end PC sector. The 4820K isn't really a step forward in any particular direction but rather a variant on what's already been available (performance wise) for a few years. As long as Intel is largely competing with itself they will likely continue with these sorts of incremental releases. The 4820K requires an Intel X79 chipset, which dates back to Sandy Bridge-E and lacks some of the newer features like native USB 3.0 support. An investment in the 4820K only makes sense if you already own an LGA2011 Motherboard and could be seen as good money chasing bad given that the platform is due an upgrade. That said the 4820K is a very capable multi-core processor and it sits amongst the top handful of processors in this regard. For typical consumers a Haswell i3 will offer mostly identical response times, a lower energy footprint and a significantly more competitive price. [Nov '13 CPUPro]

MORE DETAILS

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