IntelBX80684I99900K
IntelBX80646I74790

8 Cores, 16 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2018.

VS
About

4 Cores, 8 Threads @3.6GHz, Haswell.
Release date: Q2 2014.

Real World Speed
Performance profile from 252,810 user samples
122,423 User Benchmarks
Best Bench: 108% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 78% Base clock 3.6 GHz, turbo 2.85 GHz (avg)
Poor: 78% Great: 108%
SPEED RANK: 3rd / 1202
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 101%
UFO
130,387 User Benchmarks
Best Bench: 78% Base clock 3.6 GHz
Worst Bench: 55% Base clock 3.6 GHz, turbo 0.7 GHz (avg)
Poor: 55% Great: 78%
SPEED RANK: 136th / 1202
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 72%
Battleship
Workstation
Workstation 49%
Yacht
Effective Speed
Effective CPU Speed
99.8 % Much faster effective speed.
+45%
68.9 %
1-Core
Avg. Single Core Mixed Speed
144 Pts Much faster single-core speed.
+33%
108 Pts
2-Core
Avg. Dual Core Mixed Speed
286 Pts Much faster dual-core speed.
+38%
208 Pts
4-Core
Avg. Quad Core Mixed Speed
563 Pts Much faster quad-core speed.
+54%
366 Pts
8-Core
Avg. Octa Core Mixed Speed
1054 Pts Hugely faster octa-core speed.
+92%
548 Pts
1-Core
OC Single Core Mixed Speed
155 Pts Much faster OC single-core speed.
+30%
119 Pts
2-Core
OC Dual Core Mixed Speed
309 Pts Much faster OC dual-core speed.
+32%
234 Pts
4-Core
OC Quad Core Mixed Speed
617 Pts Much faster OC quad-core speed.
+41%
438 Pts
8-Core
OC Octa Core Mixed Speed
1208 Pts Hugely faster OC octa-core speed.
+104%
593 Pts
Market Share
Based on 22,380,599 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.61 % Hugely higher market share.
+87%
0.86 %
Value
Value For Money
86.3 % Better value.
+30%
66.4 %
User Rating
UBM User Rating
157 % Hugely more popular.
+94%
81 %
Price
Price (score)
$472 $317 Much cheaper.
+33%
Age
Newest
13 Months Hugely more recent.
+81%
67 Months
TDP
Thermal Design Power (TDP)
95 Watts 84 Watts Slightly more energy efficient.
+12%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+100%
4 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+100%
8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.6 GHz 3.6 GHz
Turbo Clock
Turbo Clock Speed
5 GHz Faster turbo frequency.
+25%
4 GHz
64-Core
OC Multi Core Mixed Speed
1662 Pts Hugely faster OC 64-core speed.
+178%
597 Pts
64-Core
Avg. Multi Core Mixed Speed
1503 Pts Hugely faster 64-core speed.
+171%
554 Pts
Series
CPU Architecture
Coffee Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
UHD 630 HD 4600
Launch Date
Launch Date
Q4'18 Q2'14
Cache
Cache
16 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$488.00 - $499.00 $303.00 - $312.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
41.6 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 4600
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.2 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
TSX-NI
Intel® TSX-NI
Yes No
PCI Express Revision
PCI Express Revision
3.0 Up to 3.0

More specs » More specs »
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The Intel i9-9900K is an 8 core, 16 thread, unlocked 9th generation Coffee Lake processor. It has a base / boost clocks of 3.6 / 4.7 GHz and a single-core boost of 5.0 GHz (the highest frequency achieved yet from this class of Intel CPU). It features 16 MB of cache, a 95W TDP and Intel UHD 630 graphics. The 9900K is compatible with the new Z390 chipset, and subject to a BIOS update, is also compatible with the older Z370 chipset. Aimed at users who do not wish to compromise, the i9-9900K offers the best gaming and desktop experience available at any price. Heavy workstation users should consider the Ryzen 9 3900X which is similarly priced. Comparing the overclocked 3900X shows that it is just 10% worse for gaming and desktop (sub octa-core) but around 40% better for 64-core computations. Gamers should consider the 9700K which offers identical overclocked gaming performance at a $100 USD discount. [Oct '18 CPUPro]

MORE DETAILS

The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) December 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop 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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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 Frequently Asked Questions

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