IntelBX80648I75820K
IntelBX8070110700K

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

8 Cores, 16 Threads @3.8GHz, Comet Lake.
Release date: Q2 2020.

Real World Speed
Performance profile from 300,553 user samples
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
198,859 User Benchmarks
Best Bench: 104% Base clock 3.8 GHz, turbo 5.1 GHz (avg)
Worst Bench: 86% Base clock 3.8 GHz, turbo 1.2 GHz (avg)
Poor: 86% Great: 104%
SPEED RANK: 99th / 1442
Gaming
Gaming 97%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 96%
Nuclear submarine
Effective Speed
Effective CPU Speed
76.8 % 96.5 % Faster effective speed.
+26%
Memory
Avg. Memory Latency
86.4 Pts 91.1 Pts Slightly lower memory latency.
+5%
1-Core
Avg. Single Core Speed
96.3 Pts 142 Pts Much faster single-core speed.
+47%
2-Core
Avg. Dual Core Speed
192 Pts 280 Pts Much faster dual-core speed.
+46%
4-Core
Avg. Quad Core Speed
364 Pts 547 Pts Much faster quad-core speed.
+50%
8-Core
Avg. Octa Core Speed
594 Pts 969 Pts Much faster octa-core speed.
+63%
Memory
OC Memory Latency
94 Pts 96.7 Pts +3%
1-Core
OC Single Core Speed
120 Pts 153 Pts Faster OC single-core speed.
+28%
2-Core
OC Dual Core Speed
237 Pts 304 Pts Faster OC dual-core speed.
+28%
4-Core
OC Quad Core Speed
462 Pts 602 Pts Much faster OC quad-core speed.
+30%
8-Core
OC Octa Core Speed
737 Pts 1111 Pts Much faster OC octa-core speed.
+51%
Market Share
Based on 67,792,216 CPUs tested
Market Share
Market Share (trailing 30 days)
0.2 % 0.91 % Hugely higher market share.
+355%
Value
Value For Money
94.7 % 103 % Slightly better value.
+9%
User Rating
UBM User Rating
66 % 89 % Much more popular.
+35%
Price
Price (score)
$130 Much cheaper.
+41%
$220
Age
Newest
117 Months 48 Months Much more recent.
+59%
TDP
Thermal Design Power (TDP)
140 Watts 125 Watts More energy efficient.
+11%
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
12 threads 16 threads Much higher thread count.
+33%
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.3 GHz 3.8 GHz Faster base frequency.
+15%
Turbo Clock
Turbo Clock Speed
3.6 GHz 5.1 GHz Much faster turbo frequency.
+42%
64-Core
OC Multi Core Speed
933 Pts 1573 Pts Much faster OC 64-core speed.
+69%
64-Core
Avg. Multi Core Speed
748 Pts 1453 Pts Hugely faster 64-core speed.
+94%
Series
CPU Architecture
Haswell-E Comet Lake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1200
Graphics
Integrated Graphics
None UHD 630
Launch Date
Launch Date
Q3'14 Q2'20
Cache
Cache
15 MB SmartCache 16 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions
SSE4.2, AVX 2.0, AES Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Lithography
Lithography
22 nm 14 nm
Max Turbo Frequency
Max Turbo Frequency
3.6 GHz 5.10 GHz
Bus Speed
Bus Speed
0 GT/s 8 GT/s
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Types
Memory Types
DDR4 1333/1600/2133 DDR4-2933
Memory Channels
Max # of Memory Channels
4 2
Memory Bandwidth
Max Memory Bandwidth
68 GB/s 45.8 GB/s
Processor Graphics
Processor Graphics ‡
None Intel® UHD Graphics 630
Package Size
Package Size
52.5mm x 45.0mm 37.5mm x 37.5mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 2
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
3.0 3
Max # of PCI Express Lanes
Max # of PCI Express Lanes
28 16

More specs » More specs »
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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

Intel’s tenth generation octa-core hyperthreaded i7-10700K is one of the fastest high-end desktop CPUs ever made. A simple overclock yields all 16 threads running at a staggering 5.1 GHz. Gaming and desktop performance is second only to the flagship i9-10900K. Although a new (Z490) LGA1200 motherboard is required, it will remain compatible with Rocket Lake CPUs which are due later this year. The 10700K’s $400 USD price tag puts it in a similar price band to AMD’s 12-core hyperthreaded Ryzen 9 3900X, however, the 10700K’s faster cores combined with its lower memory latency, yield a 12% effective speed advantage over the 3900X. Intra-generationally comparing the 10700K and 10600K shows that the 10600K offers almost identical gaming performance for 34% less money. [Jun '20 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 2024 CPU Rankings

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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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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 Frequently Asked Questions

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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
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WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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