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IntelBX80648I75820K
IntelBX8071513400F

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

10 Cores, 16 Threads @2.5GHz, Raptor Lake.
Release date: Q1 2023.

Real World Speed
Performance profile from 110,019 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: 301st / 1468
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
8,325 User Benchmarks
Great bench: 110% Base clock 2.5 GHz, turbo 4.15 GHz (avg)
Poor bench: 101% Base clock 2.5 GHz, turbo 3.95 GHz (avg)
Poor: 101% Great: 110%
SPEED RANK: 71st / 1468
Gaming
Gaming 106%
UFO
Desktop
Desktop 108%
UFO
Workstation
Workstation 107%
UFO
Effective Speed
Effective CPU Speed
76.8 % 106 % Much faster effective speed.
+37%
Memory
Avg. Memory Latency
86.4 Pts Slightly lower memory latency.
+6%
81.7 Pts
1-Core
Avg. Single Core Speed
96.3 Pts 185 Pts Hugely faster single-core speed.
+92%
2-Core
Avg. Dual Core Speed
192 Pts 368 Pts Hugely faster dual-core speed.
+92%
4-Core
Avg. Quad Core Speed
364 Pts 693 Pts Hugely faster quad-core speed.
+90%
8-Core
Avg. Octa Core Speed
594 Pts 1,162 Pts Hugely faster octa-core speed.
+96%
Memory
OC Memory Latency
94 Pts +4% 90.1 Pts
1-Core
OC Single Core Speed
120 Pts 192 Pts Much faster OC single-core speed.
+60%
2-Core
OC Dual Core Speed
237 Pts 384 Pts Much faster OC dual-core speed.
+62%
4-Core
OC Quad Core Speed
462 Pts 747 Pts Much faster OC quad-core speed.
+62%
8-Core
OC Octa Core Speed
737 Pts 1,233 Pts Much faster OC octa-core speed.
+67%
Market Share
Based on 69,049,088 CPUs tested
Market Share
Market Share (trailing 30 days)
0.13 % 0.66 % Hugely higher market share.
+408%
Value
Value For Money
94.7 % 122 % Better value.
+29%
User Rating
UBM User Rating
66 % 92 % Much more popular.
+39%
Price
Price (score)
$130 Cheaper.
+20%
$163
Age
Newest
123 Months 22 Months Hugely more recent.
+82%
TDP
Thermal Design Power (TDP)
140 Watts 65 Watts Much more energy efficient.
+54%
Cores
CPU Processing Cores
6 cores 10 cores Much higher core count.
+67%
Threads
CPU Processing Threads
12 threads 16 threads Much higher thread count.
+33%
Lithography
Manufacturing process
22 nm 10 nm Much newer manufacturing.
+55%
Base Clock
Base Clock Speed
3.3 GHz Much faster base frequency.
+32%
2.5 GHz
Turbo Clock
Turbo Clock Speed
3.6 GHz 4.6 GHz Faster turbo frequency.
+28%
64-Core
OC Multi Core Speed
933 Pts 1,677 Pts Much faster OC 64-core speed.
+80%
64-Core
Avg. Multi Core Speed
748 Pts 1,635 Pts Hugely faster 64-core speed.
+119%
Series
CPU Architecture
Haswell-E Raptor Lake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1700
Graphics
Integrated Graphics
None None

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]

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The Raptor Lake Intel i5-13400F ($200 USD, cooler included) paired with a B660/B760 motherboard ($150 USD) and 2x8 GB DDR4 3600 RAM ($50 USD) offers good value for money to mid-range gamers. The 13400F has around 5% higher single-core and 35% higher multi-core performance than its predecessor. Although both processors feature the same Golden Cove p-cores, the 13400F has four additional energy efficient e-cores which account for the improvement in multi-core performance. The 13400F offers comparable gaming and better multi-core performance than AMD's 7600X but at a lower price and without the need for an aftermarket cooler, DDR5 memory and an expensive motherboard. Since Intel don’t care for long term relationships with PC hardware influencers, for product launches, they often end up sponsoring influencers that are mostly funded by AMD. As a result, Intel rarely get positive marketing coverage beyond launch, and their products remain relatively under priced compared to AMD. When paired with a DDR4 motherboard the 13100F/13400F CPUs (at MSRP) offer unbeatable/good value to entry/mid level PC gamers. High end gamers should investigate the 13600K, which thanks to both higher clocks and higher IPC (Raptor Cove), is around 15% faster than the 13400F. [Jan '23 CPUPro]

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Processor Rankings (Price vs Performance) November 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]

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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The Best
CPUGPUSSD
Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $160Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $330
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