IntelBX80684I58600K
IntelBX80633I74820K

6 Cores, 6 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

4 Cores, 8 Threads @3.7GHz, Ivy Bridge-E.
Release date: Q3 2013.

Real World Speed
Performance profile from 288,006 user samples
264,837 User Benchmarks
Best Bench: 101% Base clock 3.6 GHz, turbo 4.95 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 4.05 GHz (avg)
Poor: 79% Great: 101%
SPEED RANK: 136th / 1442
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 74%
Battleship
23,169 User Benchmarks
Best Bench: 81% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 61% Base clock 3.7 GHz, turbo 3.75 GHz (avg)
Poor: 61% Great: 81%
SPEED RANK: 361st / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed
90.7 % Faster effective speed.
+26%
71.8 %
Memory
Avg. Memory Latency
90.1 Pts Slightly lower memory latency.
+6%
84.7 Pts
1-Core
Avg. Single Core Speed
129 Pts Much faster single-core speed.
+37%
94 Pts
2-Core
Avg. Dual Core Speed
257 Pts Much faster dual-core speed.
+41%
182 Pts
4-Core
Avg. Quad Core Speed
502 Pts Much faster quad-core speed.
+57%
320 Pts
8-Core
Avg. Octa Core Speed
656 Pts Much faster octa-core speed.
+38%
477 Pts
Memory
OC Memory Latency
96.5 Pts +3% 94 Pts
1-Core
OC Single Core Speed
151 Pts Much faster OC single-core speed.
+30%
116 Pts
2-Core
OC Dual Core Speed
302 Pts Much faster OC dual-core speed.
+39%
217 Pts
4-Core
OC Quad Core Speed
594 Pts Much faster OC quad-core speed.
+52%
392 Pts
8-Core
OC Octa Core Speed
798 Pts Much faster OC octa-core speed.
+37%
581 Pts
Market Share
Based on 67,775,859 CPUs tested
Market Share
Market Share (trailing 30 days)
0.51 % Hugely higher market share.
+920%
0.05 %
Value
Value For Money
103 % Better value.
+12%
92.7 %
User Rating
UBM User Rating
78 % Much more popular.
+42%
55 %
Price
Price (score)
$173 $110 Much cheaper.
+36%
Age
Newest
78 Months Much more recent.
+39%
127 Months
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+27%
130 Watts
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
6 threads 8 threads Much higher thread count.
+33%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed
4.3 GHz Faster turbo frequency.
+10%
3.9 GHz
64-Core
OC Multi Core Speed
828 Pts Much faster OC 64-core speed.
+42%
583 Pts
64-Core
Avg. Multi Core Speed
681 Pts Much faster 64-core speed.
+40%
487 Pts
Series
CPU Architecture
Coffee Lake Ivy Bridge-E
Socket
Motherboard Socket
FCLGA1151 FCLGA2011
Graphics
Integrated Graphics
UHD 630 None
Launch Date
Launch Date
Q4'17 Q3'13
Cache
Cache
9 MB 10 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.2, AVX, AES
Lithography
Lithography
14 nm 22 nm
Max Turbo Frequency
Max Turbo Frequency
4.30 GHz 3.9 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Memory Types
Memory Types
DDR4-2666 DDR3 1333/1600/1866
Memory Channels
Max # of Memory Channels
2 4
Package Size
Package Size
37.5mm x 37.5mm 52.5mm x 45.0mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 40

More specs » More specs »
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The unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. [Oct '17 CPUPro]

MORE DETAILS

This is yet another processor from Intel that demonstrates their total market domination in the high end PC sector. The 4820K isn't really a step forward in any particular direction but rather a variant on what's already been available (performance wise) for a few years. As long as Intel is largely competing with itself they will likely continue with these sorts of incremental releases. The 4820K requires an Intel X79 chipset, which dates back to Sandy Bridge-E and lacks some of the newer features like native USB 3.0 support. An investment in the 4820K only makes sense if you already own an LGA2011 Motherboard and could be seen as good money chasing bad given that the platform is due an upgrade. That said the 4820K is a very capable multi-core processor and it sits amongst the top handful of processors in this regard. For typical consumers a Haswell i3 will offer mostly identical response times, a lower energy footprint and a significantly more competitive price. [Nov '13 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) April 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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CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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