Intel
IntelBX80684I99900K

2 Cores, 2 Threads @3.0GHz, Core.
Release date: Q1 2008.

VS
About

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

Real World Speed
Performance profile from 171,924 user samples
46,815 User Benchmarks
Best Bench: 27% Base clock 3.2 GHz, turbo 3.15 GHz (avg)
Worst Bench: 17% Base clock 3 GHz, turbo 1.35 GHz (avg)
Poor: 17% Great: 27%
SPEED RANK: 823rd / 1206
Gaming
Gaming 25%
Surfboard
Desktop
Desktop 31%
Sail boat
Workstation
Workstation 11%
Tree trunk
125,109 User Benchmarks
Best Bench: 108% Base clock 3.6 GHz, turbo 5.1 GHz (avg)
Worst Bench: 78% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 78% Great: 108%
SPEED RANK: 4th / 1206
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 100%
Nuclear submarine
Effective Speed
Effective CPU Speed
24.7 % 98.7 % Hugely faster effective speed.
+300%
1-Core
Avg. Single Core Mixed Speed
50.6 Pts 143 Pts Hugely faster single-core speed.
+183%
2-Core
Avg. Dual Core Mixed Speed
95.3 Pts 283 Pts Hugely faster dual-core speed.
+197%
4-Core
Avg. Quad Core Mixed Speed
96.7 Pts 557 Pts Hugely faster quad-core speed.
+476%
8-Core
Avg. Octa Core Mixed Speed
98.2 Pts 1040 Pts Hugely faster octa-core speed.
+959%
1-Core
OC Single Core Mixed Speed
54.7 Pts 154 Pts Hugely faster OC single-core speed.
+182%
2-Core
OC Dual Core Mixed Speed
109 Pts 308 Pts Hugely faster OC dual-core speed.
+183%
4-Core
OC Quad Core Mixed Speed
109 Pts 616 Pts Hugely faster OC quad-core speed.
+465%
8-Core
OC Octa Core Mixed Speed
109 Pts 1180 Pts Hugely faster OC octa-core speed.
+983%
Market Share
Based on 22,484,316 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.21 % 1.63 % Hugely higher market share.
+676%
Value
Value For Money
43.9 % 85.4 % Hugely better value.
+94%
User Rating
UBM User Rating
56 % 157 % Hugely more popular.
+180%
Price
Price (score)
$34 Hugely cheaper.
+93%
$472
Age
Newest
143 Months 13 Months Hugely more recent.
+91%
TDP
Thermal Design Power (TDP)
130 Watts 95 Watts More energy efficient.
+27%
Cores
CPU Processing Cores
2 cores 8 cores Hugely higher core count.
+300%
Threads
CPU Processing Threads
2 threads 16 threads Hugely higher thread count.
+700%
Lithography
Manufacturing process
45 nm 14 nm Much newer manufacturing.
+69%
Base Clock
Base Clock Speed
3 GHz 3.6 GHz Faster base frequency.
+20%
Turbo Clock
Turbo Clock Speed
3 GHz 5 GHz Much faster turbo frequency.
+67%
64-Core
OC Multi Core Mixed Speed
109 Pts 1643 Pts Insanely faster OC 64-core speed.
+1,407%
64-Core
Avg. Multi Core Mixed Speed
99.5 Pts 1495 Pts Insanely faster 64-core speed.
+1,403%
Series
CPU Architecture
Core Coffee Lake
Socket
Motherboard Socket
LGA775 FCLGA1151
Graphics
Integrated Graphics
None UHD 630
Launch Date
Launch Date
Q1'08 Q4'18
Cache
Cache
6 MB L2 16 MB SmartCache
Embedded Options Available
Embedded Options Available
Yes No
Lithography
Lithography
45 nm 14 nm
Recommended Price
Recommended Customer Price
$149.00 - $179.00 $488.00 - $499.00
Bus Speed
Bus Speed
1333 MHz FSB 8 GT/s DMI3
Turbo Boost Tech
Intel® Turbo Boost Technology
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
AES New Instructions
Intel® AES New Instructions
No Yes

More specs » More specs »
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The Intel Core 2 Duo E8400 is amongst the fastest of the Core 2 Duo range of now nearly ten year old CPUs. The E8400 is included in our group tests simply as a reference point due to its huge success back in its day. Running at a clock speed of 3.0 GHz the E8400 has an effective speed of 52 which is 85% slower than its modern day counterparts. The relative lack of performance is especially noticeable in the area of multi-core processing as a consequence of the E8400's relatively few two cores. Anyone considering an upgrade needn't hesitate as modern CPUs are not only orders of magnitude faster but also considerably more energy efficient and feature packed. [Oct '14 CPUPro]

MORE DETAILS

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

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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How it works

  • - Download and run UserBenchMark.
  • - 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.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

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