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IntelBX80671I76900K
IntelBX80648I75820K
▲ 524,887 ▼

8 Cores, 16 Threads @3.2GHz, Broadwell-E.
Release date: Q2 2016.

VS
▲ 669,878 ▼

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

Effective Speed 
+12%
Real World Speed
Performance profile from 108,449 user samples
Benchmark your CPU here
6,755 User Benchmarks
Best Bench: 98% Base clock 4.1 GHz, turbo 4.45 GHz (avg)
Worst Bench: 76% Base clock 3.2 GHz, turbo 1.2 GHz (avg)
Poor: 76% Great: 98%
SPEED RANK: 172nd / 1442
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 83%
Aircraft carrier
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: 281st / 1442
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed 		85.9 % Faster effective speed.
+12% 		76.8 %
Average Score 
+20%
Memory
Avg. Memory Latency 		87.3 Pts +1% 86.4 Pts
1-Core
Avg. Single Core Speed 		114 Pts Faster single-core speed.
+18% 		96.3 Pts
2-Core
Avg. Dual Core Speed 		228 Pts Faster dual-core speed.
+19% 		192 Pts
4-Core
Avg. Quad Core Speed 		454 Pts Faster quad-core speed.
+25% 		364 Pts
8-Core
Avg. Octa Core Speed 		819 Pts Much faster octa-core speed.
+38% 		594 Pts
Overclocked Score 
+17%
Memory
OC Memory Latency 		95.9 Pts +2% 94 Pts
1-Core
OC Single Core Speed 		138 Pts Faster OC single-core speed.
+15% 		120 Pts
2-Core
OC Dual Core Speed 		276 Pts Faster OC dual-core speed.
+16% 		237 Pts
4-Core
OC Quad Core Speed 		545 Pts Faster OC quad-core speed.
+18% 		462 Pts
8-Core
OC Octa Core Speed 		985 Pts Much faster OC octa-core speed.
+34% 		737 Pts
Value & Sentiment 
+151%
Market Share
Based on 67,695,249 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.14 % Hugely higher market share.
+600%
Value
Value For Money 		108 % Better value.
+14% 		94.7 %
User Rating
UBM User Rating 		52 % 66 % More popular.
+27%
Price
Price (score) 		$120 Slightly cheaper.
+8% 		$130
Nice To Haves 
+27%
Age
Newest 		94 Months More recent.
+19% 		116 Months
TDP
Thermal Design Power (TDP) 		140 Watts 140 Watts
Cores
CPU Processing Cores 		8 cores Much higher core count.
+33% 		6 cores
Threads
CPU Processing Threads 		16 threads Much higher thread count.
+33% 		12 threads
Lithography
Manufacturing process 		14 nm Much newer manufacturing.
+36% 		22 nm
Base Clock
Base Clock Speed 		3.2 GHz 3.3 GHz +3%
Turbo Clock
Turbo Clock Speed 		4 GHz Faster turbo frequency.
+11% 		3.6 GHz
64-Core
OC Multi Core Speed 		1428 Pts Much faster OC 64-core speed.
+53% 		933 Pts
64-Core
Avg. Multi Core Speed 		1206 Pts Much faster 64-core speed.
+61% 		748 Pts
Specifications 
Series
CPU Architecture 		Broadwell-E Haswell-E
Socket
Motherboard Socket 		LGA2011-V3 LGA2011-V3
Graphics
Integrated Graphics 		None None
Launch Date
Launch Date 		Q2'16 Q3'14
Cache
Cache 		20 MB 15 MB SmartCache
Lithography
Lithography 		14 nm 22 nm
Recommended Price
Recommended Customer Price 		N/A $389.00 - $396.00
Max Turbo Frequency
Max Turbo Frequency 		4 GHz 3.6 GHz
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 64 GB
Memory Types
Memory Types 		DDR4 2400/2133 DDR4 1333/1600/2133
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		40 28

More specs » More specs »
Conclusion 
Average Bench 85.9%
Average Bench 76.8%
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The Core i7-6900K is one of four new Broadwell-E prosumer CPUs. This model has eight cores with base and turbo frequencies of 3.2 and 4.0 GHz respectively. The 6900K is based on a 14 nm architecture, it has a TDP of 140 watts, 40 PCIe 3.0 lanes and no integrated graphics. Because of its MSRP of $1,100, the 6900K only makes sense for very niche use cases which include top end graphics design and video production. Comparing the 6900K and 6700K shows that for typical desktop use the 6900K only offers a gain of around 12% for a whopping three fold price increase. This is because desktop computing largely depends on single core performance and the Skylake i7-6700K is both clocked higher and has higher IPC due to its one generation lead over the 6900K. That said, as a workstation CPU the 6900K is bested only by the $2,000 flagship ten core 6950X. (6900K vs 6950X) [Jun '16 CPUPro]

MORE DETAILS

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

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