IntelBX80648I75820K
IntelBX8071512600K

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

10 Cores, 16 Threads @3.7GHz, Alder Lake.
Release date: Q4 2021.

Real World Speed
Performance profile from 203,257 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: 292nd / 1459
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
101,563 User Benchmarks
Best Bench: 117% Base clock 3.7 GHz, turbo 5 GHz (avg)
Worst Bench: 100% Base clock 3.7 GHz, turbo 2.35 GHz (avg)
Poor: 100% Great: 117%
SPEED RANK: 50th / 1459
Gaming
Gaming 109%
UFO
Desktop
Desktop 110%
UFO
Workstation
Workstation 111%
UFO
Effective Speed
Effective CPU Speed
76.8 % 109 % Much faster effective speed.
+41%
Memory
Avg. Memory Latency
86.4 Pts Slightly lower memory latency.
+8%
80 Pts
1-Core
Avg. Single Core Speed
96.3 Pts 194 Pts Hugely faster single-core speed.
+101%
2-Core
Avg. Dual Core Speed
192 Pts 382 Pts Hugely faster dual-core speed.
+99%
4-Core
Avg. Quad Core Speed
364 Pts 736 Pts Hugely faster quad-core speed.
+102%
8-Core
Avg. Octa Core Speed
594 Pts 1223 Pts Hugely faster octa-core speed.
+106%
Memory
OC Memory Latency
94 Pts +3% 91.1 Pts
1-Core
OC Single Core Speed
120 Pts 207 Pts Much faster OC single-core speed.
+72%
2-Core
OC Dual Core Speed
237 Pts 416 Pts Much faster OC dual-core speed.
+76%
4-Core
OC Quad Core Speed
462 Pts 813 Pts Much faster OC quad-core speed.
+76%
8-Core
OC Octa Core Speed
737 Pts 1367 Pts Hugely faster OC octa-core speed.
+85%
Market Share
Based on 68,279,810 CPUs tested
Market Share
Market Share (trailing 30 days)
0.15 % 0.87 % Hugely higher market share.
+480%
Value
Value For Money
94.7 % 123 % Much better value.
+30%
User Rating
UBM User Rating
66 % 99 % Much more popular.
+50%
Price
Price (score)
$130 Cheaper.
+26%
$175
Age
Newest
119 Months 32 Months Much more recent.
+73%
TDP
Thermal Design Power (TDP)
140 Watts 125 Watts More energy efficient.
+11%
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 3.7 GHz Faster base frequency.
+12%
Turbo Clock
Turbo Clock Speed
3.6 GHz 4.9 GHz Much faster turbo frequency.
+36%
64-Core
OC Multi Core Speed
933 Pts 1926 Pts Hugely faster OC 64-core speed.
+106%
64-Core
Avg. Multi Core Speed
748 Pts 1743 Pts Hugely faster 64-core speed.
+133%
Series
CPU Architecture
Haswell-E Alder Lake
Socket
Motherboard Socket
LGA2011-V3 FCLGA1700
Graphics
Integrated Graphics
None UHD 770
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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 latest 10-core i5-12600K Alder Lake desktop processor offers an impressive 50% 64-core performance improvement over it's predecessor. The 12600K combines six hyper-threaded Golden Cove P-cores with clock speeds up to 4.9 GHz and four energy efficient Gracemont E-cores for a total of 16 threads. Alder Lake CPUs have a new LGA 1700 socket which requires new cooler brackets and a new Z690 motherboard. Z690 brings several new features including PCIe 5.0 and DDR5 memory. Most Z690 boards will ship in both DDR4 and DDR5 variants. DDR4 is likely the better option, at least until DDR5 prices settle. With an MRSP of just $290 USD, the 12600K is both cheaper and faster than the competition in both single and, notably, multi-core performance. As a result, even AMD's prolific marketing infrastructure (youtube, reddit, forums etc.) will struggle to drive sales, at least until Zen 4 launches (est. late 2022). In the meantime, Intel's i5-12600K is the obvious choice for consumers that do not wish to pay over the odds for almost unparalleled performance in the majority of workloads including gaming. That said, gamers that already own a K series CPU from the 8th gen. or higher will see limited gains in the majority of titles when paired with a 3060 (or lower) tier GPU. In some cases (e.g. PUBG or Overwatch) gamers will see fewer frame drops by disabling the E-Cores all together. If recent history is a guide, stock levels at MSRP are likely to deplete rapidly. [Nov '21 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 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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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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The Best
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Intel Core i5-12600K $175Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $198Nvidia RTX 4060-Ti $378WD Black SN850X M.2 1TB $77
Intel Core i5-12400F $110Nvidia RTX 4070 $499Crucial T700 M.2 4TB $342
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