IntelBX80684I39350KF
$180
IntelBX80684I58600K
 $180 

4 Cores, 4 Threads @4.0GHz, Coffee Lake.
Release date: Q1 2019.

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

CSGO
Dust 2 1080p Max
270 EFps 280 EFps +4%
GTAV
Franklin & Lamar 1080p Max
108 EFps 110 EFps +2%
Overwatch
Temple of Anubis 1080p Max
134 EFps 138 EFps +3%
PUBG
M249 Training 1080p Max
125 EFps 135 EFps Slightly Better PUBG EFps.
+8%
Fortnite
UserBenchmark Island 1080p Max
145 EFps Slightly Better Fortnite EFps.
+9%
133 EFps
Real World Speed
Performance profile from 266,279 user samples
1,442 User Benchmarks
Best Bench: 100% Base clock 4 GHz, turbo 5.3 GHz (avg)
Worst Bench: 73% Base clock 4 GHz, turbo 4.35 GHz (avg)
Poor: 73% Great: 100%
SPEED RANK: 140th / 1442
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 69%
Battle cruiser
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
Effective Speed
Effective CPU Speed
89.3 % 90.7 % +2%
Memory
Avg. Memory Latency
89.1 Pts 90.1 Pts +1%
1-Core
Avg. Single Core Speed
138 Pts Slightly faster single-core speed.
+7%
129 Pts
2-Core
Avg. Dual Core Speed
275 Pts Slightly faster dual-core speed.
+7%
257 Pts
4-Core
Avg. Quad Core Speed
515 Pts +3% 502 Pts
8-Core
Avg. Octa Core Speed
523 Pts 656 Pts Faster octa-core speed.
+25%
Memory
OC Memory Latency
96.1 Pts 96.5 Pts +0%
1-Core
OC Single Core Speed
157 Pts +4% 151 Pts
2-Core
OC Dual Core Speed
313 Pts +4% 302 Pts
4-Core
OC Quad Core Speed
613 Pts +3% 594 Pts
8-Core
OC Octa Core Speed
613 Pts 798 Pts Much faster OC octa-core speed.
+30%
Market Share
Based on 67,776,641 CPUs tested
Market Share
Market Share (trailing 30 days)
0.01 % 0.5 % Insanely higher market share.
+4,900%
Value
Value For Money
101 % 103 % +3%
User Rating
UBM User Rating
62 % 78 % More popular.
+26%
Price
Price (score)
$180 $173 +4%
Age
Newest
61 Months More recent.
+22%
78 Months
TDP
Thermal Design Power (TDP)
91 Watts +4% 95 Watts
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
4 threads 6 threads Much higher thread count.
+50%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4 GHz Faster base frequency.
+11%
3.6 GHz
Turbo Clock
Turbo Clock Speed
4.6 GHz Slightly faster turbo frequency.
+7%
4.3 GHz
64-Core
OC Multi Core Speed
608 Pts 828 Pts Much faster OC 64-core speed.
+36%
64-Core
Avg. Multi Core Speed
525 Pts 681 Pts Faster 64-core speed.
+30%
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
None UHD 630
Launch Date
Launch Date
Q1'19 Q4'17
Cache
Cache
8 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX2
Max Turbo Frequency
Max Turbo Frequency
4.60 GHz 4.30 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (130W)
Memory Types
Memory Types
DDR4-2400 DDR4-2666
ECC Memory Supported
ECC Memory Supported ‡
Yes No
TSX-NI
Intel® TSX-NI
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
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The i3-9350KF is a 9th generation quad core Coffee Lake CPU which is designed to be used with a discrete graphics card. It has base/boost turbo frequencies of 4.0/4.6 GHz. The 9350KF generates less heat than its higher core "K" counterparts so getting a decent overclock without expensive cooling is relatively straightforward. Overclocking the 9350KF to 5 GHz with a $20 USD Gammaxx 400 cooler puts the 9350KF at similar single, dual and quad core performance levels as the 9600K, 9700K and 9900K SKUs. Consequently there is not much difference in fps between the 9350KF and any other CPU regardless of core count. At $180 USD the 9350KF sits amongst the top value gaming and desktop CPUs currently available. Comparing the 4 thread 9350KF to AMD’s twice as expensive 16 thread Ryzen 3700X shows that the 9350KF wins hands down in all five of today’s most popular games. The only other CPUs worth considering for unbeatable gaming performance are the 9600K or 9600KF which have 50% more, equally fast cores, for less than 10% more money.  [Nov '19 CPUPro]

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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]

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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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  • 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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Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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  • - CPU tests include: integer, floating and string
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  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
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 Frequently Asked Questions

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