IntelBX80684I58600K
IntelBX80684I38350K

6 Cores, 6 Threads
@3.6GHz Coffee Lake (2017)

4 Cores, 4 Threads
@4.0GHz Coffee Lake (2017)

Real World Speed
Performance profile from 27,965 user samples
23,844 User Benchmarks
Best Bench: 120% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 92% Base clock 3.6 GHz, turbo 2.25 GHz (avg)
Poor: 92% Great: 120%
SPEED RANK: 9th / 1104
Gaming
Gaming 104%
UFO
Desktop
Desktop 100%
UFO
Workstation
Workstation 76%
Battleship
4,121 User Benchmarks
Best Bench: 112% Base clock 4 GHz, turbo 5 GHz (avg)
Worst Bench: 78% Base clock 4 GHz, turbo 1.65 GHz (avg)
Poor: 78% Great: 112%
SPEED RANK: 26th / 1104
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 57%
Gunboat
Effective Speed
Effective CPU Speed
104 % Slightly faster effective speed.
+10%
94.4 %
SC Mixed
Avg. Single Core Mixed Speed
135 Pts +4% 130 Pts
QC Mixed
Avg. Quad Core Mixed Speed
530 Pts Slightly faster quad-core speed.
+8%
489 Pts
MC Mixed
Avg. Multi Core Mixed Speed
769 Pts Much faster multi-core speed.
+54%
500 Pts
SC Mixed
OC Single Core Mixed Speed
157 Pts +4% 151 Pts
QC Mixed
OC Quad Core Mixed Speed
618 Pts +5% 591 Pts
MC Mixed
OC Multi Core Mixed Speed
890 Pts Much faster OC multi-core speed.
+50%
593 Pts
Market Share
Based on 8,844,688 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.42 % Hugely higher market share.
+610%
0.2 %
Value
Value For Money
112 % 116 % +3%
User Rating
UBM User Rating
123 % Hugely more popular.
+98%
62 %
Price
Price (score)
$239 $169 Cheaper.
+29%
Age
Newest
7 Months Slightly more recent.
+12%
8 Months
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
6 threads Much higher thread count.
+50%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 4 GHz Slightly faster base frequency.
+11%
Turbo Clock
Turbo Clock Speed
4.3 GHz Slightly faster turbo frequency.
+8%
4 GHz
SC Int
Single Core Integer Speed
152 Pts +3% 147 Pts
SC Float
Single Core Floating Point Speed
162 Pts +3% 157 Pts
QC Int
Quad Core Integer Speed
599 Pts Slightly faster quad-core int speed.
+6%
564 Pts
QC Float
Quad Core Floating Point Speed
646 Pts +4% 620 Pts
MC Int
Multi Core Integer Speed
862 Pts Much faster multi-core int speed.
+51%
570 Pts
MC Float
Multi Core Floating Point Speed
951 Pts Much faster multi-core fp speed.
+53%
621 Pts
Series
CPU Architecture
Coffee Lake (2017) Coffee Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Cache
Cache
9 MB 8 MB
Memory Types
Memory Types
DDR4-2666 DDR4-2400
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

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 (especially streamers) 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]

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The quad core i3-8350K hails from Intel’s most recent (and as yet unreleased) generation of Coffee Lake processors. It has a stock clock of 4.0 GHz, 8MB of cache and a TDP of 95W. The 8350K is the first i3 processor to feature four cores (previous generations of i3s had two cores and four threads). With this eighth generation of processors, Intel has introduced a step change in their nomenclature which witnesses the old quad core i5s become the new quad core i3s. Our benchmarks show a 25% increase in effective speed between generations of i3 8350K vs 7350K and near equivalence between the outgoing i5-7600K and the new i3-8350K. Although the price points of Coffee Lake are not yet known, if Intel keep them roughly in line with the previous generations (i3 ~= $140) this will represent the best improvement in value for money since Sandy Bridge as the 8350K at $140 would be 34.8% cheaper than a 7600K at $215. Cynics among us will see this as an effort to fend off competition from AMD’s new multi-core Ryzen processors. It appears Intel may have been successful with this move as early benchmarks from the 8350K suggest that it beats the more expensive 8 core Ryzen 7 1700 in single and quad core performance by 25%. The 8350K is a great choice for gaming builds, but the budget will also need to factor in a complementary motherboard based on the new 300 series chipset. Expect the quad core i3-8100 which is the 8350K’s little sister featuring a base clock of 3.6 GHz, to follow shortly. [Aug '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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CPUGPUSSD
AMD Ryzen 5 1600 $169Nvidia GTX 1070 $447Samsung 850 Evo 250GB $100
Intel Core i7-8700K $325Nvidia GTX 1060-6GB $295Samsung 850 Evo 500GB $137
Intel Core i7-7700K $299AMD RX 480 $330Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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