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IntelBX80648I75820K
IntelBX80637I73770
$297
▲ 669,879 ▼

6 Cores, 12 Threads @3.3GHz, Haswell-E.
Release date: Q3 2014.

VS
▲ 585,058 ▼
 $297 

4 Cores, 8 Threads @3.4GHz, Ivy Bridge.
Release date: Q1 2012.

Effective Speed 
+11%
Real World Speed
Performance profile from 379,901 user samples
Benchmark your CPU here
101,694 User Benchmarks
Best Bench: 88% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 68% Base clock 3.3 GHz, turbo 1.2 GHz (avg)
Poor: 68% Great: 88%
SPEED RANK: 289th / 1456
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
278,207 User Benchmarks
Best Bench: 76% Base clock 3.4 GHz, turbo 4.1 GHz (avg)
Worst Bench: 57% Base clock 3.4 GHz, turbo 3.65 GHz (avg)
Poor: 57% Great: 76%
SPEED RANK: 432nd / 1456
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 73%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed 		76.8 % Faster effective speed.
+11% 		69 %
Average Score 
+16%
Memory
Avg. Memory Latency 		86.4 Pts +4% 83 Pts
1-Core
Avg. Single Core Speed 		96.3 Pts Slightly faster single-core speed.
+5% 		91.3 Pts
2-Core
Avg. Dual Core Speed 		192 Pts Faster dual-core speed.
+10% 		174 Pts
4-Core
Avg. Quad Core Speed 		364 Pts Faster quad-core speed.
+22% 		299 Pts
8-Core
Avg. Octa Core Speed 		594 Pts Much faster octa-core speed.
+36% 		436 Pts
Overclocked Score 
+24%
Memory
OC Memory Latency 		94 Pts +1% 93.1 Pts
1-Core
OC Single Core Speed 		120 Pts Faster OC single-core speed.
+19% 		101 Pts
2-Core
OC Dual Core Speed 		237 Pts Faster OC dual-core speed.
+20% 		198 Pts
4-Core
OC Quad Core Speed 		462 Pts Much faster OC quad-core speed.
+34% 		345 Pts
8-Core
OC Octa Core Speed 		737 Pts Much faster OC octa-core speed.
+48% 		497 Pts
Value & Sentiment 
+51%
Market Share
Based on 68,123,794 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.14 % 0.58 % Hugely higher market share.
+314%
Value
Value For Money 		94.7 % Much better value.
+40% 		67.7 %
User Rating
UBM User Rating 		66 % More popular.
+14% 		58 %
Price
Price (score) 		$130 Much cheaper.
+56% 		$297
Nice To Haves 
+24%
Age
Newest 		118 Months More recent.
+20% 		147 Months
TDP
Thermal Design Power (TDP) 		140 Watts 77 Watts Much more energy efficient.
+45%
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		12 threads Much higher thread count.
+50% 		8 threads
Lithography
Manufacturing process 		22 nm 22 nm
Base Clock
Base Clock Speed 		3.3 GHz 3.4 GHz +3%
Turbo Clock
Turbo Clock Speed 		3.6 GHz 3.9 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Speed 		933 Pts Hugely faster OC 64-core speed.
+87% 		498 Pts
64-Core
Avg. Multi Core Speed 		748 Pts Much faster 64-core speed.
+67% 		449 Pts
Specifications 
Series
CPU Architecture 		Haswell-E Ivy Bridge
Socket
Motherboard Socket 		LGA2011-V3 FCLGA1155
Graphics
Integrated Graphics 		None HD 4000
Launch Date
Launch Date 		Q3'14 Q2'12
Cache
Cache 		15 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2, AVX 2.0, AES SSE4.1/4.2, AVX
Embedded Options Available
Embedded Options Available 		No Yes
Recommended Price
Recommended Customer Price 		$389.00 - $396.00 $283.00 - $305.00
Max Turbo Frequency
Max Turbo Frequency 		3.6 GHz 3.9 GHz
Bus Speed
Bus Speed 		0 GT/s 5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4 1333/1600/2133 DDR3 1333/1600
Memory Channels
Max # of Memory Channels 		4 2
Memory Bandwidth
Max Memory Bandwidth 		68 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡ 		None Intel® HD Graphics 4000
Package Size
Package Size 		52.5mm x 45.0mm 37.5mm x 37.5mm
vPro Tech
Intel® vPro™ Technology ‡ 		No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		No Yes

More specs » More specs »
Conclusion 
Average Bench 76.8%
Average Bench 69%
ADVERTISEMENT

The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 CPUPro]

MORE DETAILS

The Intel Core i7-3770 is an Ivy Bridge processor. With four cores and eight threads the 3770 has excellent single , dual and multi-core performance. Comparing the 3770 to the 4770K shows that the 4770K leads by 11% at stock speeds and, thanks to an unlocked multiplier on the 4770K, by 15% at overclocked frequencies. The i7-3770 has a very strong performance profile which includes multi-core capabilities that are likely to be overkill for the majority of desktop users. Comparing the 3770 to the 3770K shows that the unlocked 3770K allows for, on average, an additional 8% increase in performance. [Mar '14 CPUPro]

MORE DETAILS

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