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IntelBX80684I58600K
IntelBX8070811900K

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

8 Cores, 16 Threads @3.5GHz, Rocket Lake.
Release date: Q1 2021.

CSGO
Dust 2 1080p Max
280 EFps 306 EFps Slightly Better CSGO EFps.
+9%
GTAV
Franklin & Lamar 1080p Max
110 EFps +1% 109 EFps
Overwatch
Temple of Anubis 1080p Max
138 EFps 146 EFps Slightly Better Overwatch EFps.
+6%
PUBG
M249 Training 1080p Max
135 EFps 147 EFps Slightly Better PUBG EFps.
+9%
Fortnite
UserBenchmark Island 1080p Max
133 EFps 136 EFps +2%
Real World Speed
Performance profile from 309,156 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: 154th / 1468
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 74%
Battleship
44,319 User Benchmarks
Best Bench: 112% Base clock 3.5 GHz, turbo 5.2 GHz (avg)
Worst Bench: 94% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Poor: 94% Great: 112%
SPEED RANK: 78th / 1468
Gaming
Gaming 103%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 104%
UFO
Effective Speed
Effective CPU Speed
90.7 % 103 % Faster effective speed.
+14%
Memory
Avg. Memory Latency
90.1 Pts +3% 87.4 Pts
1-Core
Avg. Single Core Speed
129 Pts 171 Pts Much faster single-core speed.
+33%
2-Core
Avg. Dual Core Speed
257 Pts 333 Pts Faster dual-core speed.
+30%
4-Core
Avg. Quad Core Speed
502 Pts 638 Pts Faster quad-core speed.
+27%
8-Core
Avg. Octa Core Speed
656 Pts 1,114 Pts Much faster octa-core speed.
+70%
Memory
OC Memory Latency
96.5 Pts +1% 95.6 Pts
1-Core
OC Single Core Speed
151 Pts 183 Pts Faster OC single-core speed.
+21%
2-Core
OC Dual Core Speed
302 Pts 360 Pts Faster OC dual-core speed.
+19%
4-Core
OC Quad Core Speed
594 Pts 700 Pts Faster OC quad-core speed.
+18%
8-Core
OC Octa Core Speed
798 Pts 1,279 Pts Much faster OC octa-core speed.
+60%
Market Share
Based on 69,025,165 CPUs tested
Market Share
Market Share (trailing 30 days)
0.43 % +5% 0.41 %
Value
Value For Money
114 % Slightly better value.
+9%
104 %
User Rating
UBM User Rating
77 % +1% 76 %
Price
Price (score)
$123 Much cheaper.
+54%
$270
Age
Newest
85 Months 43 Months Much more recent.
+49%
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+24%
125 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
6 threads 16 threads Hugely higher thread count.
+167%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz +3% 3.5 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz 5.3 GHz Faster turbo frequency.
+23%
64-Core
OC Multi Core Speed
828 Pts 1,734 Pts Hugely faster OC 64-core speed.
+109%
64-Core
Avg. Multi Core Speed
681 Pts 1,600 Pts Hugely faster 64-core speed.
+135%
Series
CPU Architecture
Coffee Lake Rocket Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1200
Graphics
Integrated Graphics
UHD 630 UHD 750

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]

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The i9-11900K is the fastest CPU in Intel’s 11th Gen Rocket Lake-S lineup which brings higher IPC (early samples indicate +19%) and 50% stronger integrated graphics. There are also 500 series chipset improvements including: 20 PCIe4 CPU lanes (up from 16) and USB 3.2 Gen 2x2 (20 Gbps up from 10 Gbps). Rocket Lake’s IPC uplift translates to around a 10% faster Effective Speed than both Intel's 10th Gen and AMD’s 5000 series. Despite Intel’s performance lead, AMD continues to outsell Intel. Given the scale of Intel's operation, it’s inexplicable that their marketing remains so neglected. Little effort is made to counter widespread disinformation such as: “it uses too much electricity” or the classic: “it needs more cores”. Intel’s marketing samples are routinely distributed to reviewers that appear better incentivized to bury Intel's products rather than review them. Not enabling XMP or only testing with BIOS power limits enabled is akin to leaving the handbrake on during a race. Mind-numbing “scientific” and rendering benchmarks are presented as gospel. Different games, mostly unplayed by real users, are cherry picked for each “review”. When it's convenient, canned game benchmarks are chosen such as Ulletical’s CSGO which runs at nearly double the in-game fps. Credible benchmark data, which necessarily includes replicable video footage from popular games, is the exception rather than the rule. At every release, AMD’s marketers coordinate narratives to ensure another feast of blue blubber. Nonetheless, towards the end of 2021, Intel’s Golden Cove is due to offer an additional 20-30% performance increase. At that time, with a net 30-40% performance lead, Intel will probably regain significant market share despite AMD's class-leading marketing. In the meantime, most PC gamers need look no further than the 11400F. [Mar '21 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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