IntelBX80646I74790K
IntelBX80684I38350K

4 Cores, 8 Threads @4.0GHz, Haswell.
Release date: Q2 2014.

4 Cores, 4 Threads @4.0GHz, Coffee Lake.
Release date: Q3 2017.

Real World Speed
Performance profile from 228,421 user samples
216,726 User Benchmarks
Best Bench: 100% Base clock 4.9 GHz, turbo 6 GHz (avg)
Worst Bench: 68% Base clock 4 GHz, turbo 0.35 GHz (avg)
Poor: 68% Great: 100%
SPEED RANK: 65th / 1159
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
11,695 User Benchmarks
Best Bench: 109% Base clock 4 GHz, turbo 5.1 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 4.5 GHz (avg)
Poor: 70% Great: 109%
SPEED RANK: 48th / 1159
Gaming
Gaming 90%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed
85.4 % 90.3 % Slightly faster effective speed.
+6%
SC Mixed
Avg. Single Core Mixed Speed
122 Pts 127 Pts +4%
QC Mixed
Avg. Quad Core Mixed Speed
417 Pts 464 Pts Slightly faster quad-core speed.
+11%
MC Mixed
Avg. Multi Core Mixed Speed
622 Pts Much faster multi-core speed.
+30%
478 Pts
SC Mixed
OC Single Core Mixed Speed
136 Pts 150 Pts Slightly faster OC single-core speed.
+10%
QC Mixed
OC Quad Core Mixed Speed
508 Pts 574 Pts Slightly faster OC quad-core speed.
+13%
MC Mixed
OC Multi Core Mixed Speed
712 Pts Faster OC multi-core speed.
+23%
577 Pts
Market Share
Based on 17,945,433 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.26 % Hugely higher market share.
+950%
0.12 %
Value
Value For Money
78.5 % 111 % Much better value.
+41%
User Rating
UBM User Rating
99 % Much more popular.
+46%
68 %
Price
Price (score)
$365 $169 Much cheaper.
+54%
Age
Newest
60 Months 21 Months Much more recent.
+65%
TDP
Thermal Design Power (TDP)
88 Watts +3% 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
4 GHz 4 GHz
Turbo Clock
Turbo Clock Speed
4.4 GHz Slightly faster turbo frequency.
+10%
4 GHz
SC Int
Single Core Integer Speed
136 Pts 144 Pts Slightly faster single-core int speed.
+6%
SC Float
Single Core Floating Point Speed
138 Pts 158 Pts Slightly faster single-core fp speed.
+14%
QC Int
Quad Core Integer Speed
514 Pts 540 Pts Slightly faster quad-core int speed.
+5%
QC Float
Quad Core Floating Point Speed
510 Pts 617 Pts Faster quad-core fp speed.
+21%
MC Int
Multi Core Integer Speed
679 Pts Faster multi-core int speed.
+23%
552 Pts
MC Float
Multi Core Floating Point Speed
722 Pts Faster multi-core fp speed.
+17%
617 Pts
Series
CPU Architecture
Haswell Coffee Lake
Socket
Motherboard Socket
FCLGA1150 FCLGA1151
Graphics
Integrated Graphics
HD 4600 UHD 630
Launch Date
Launch Date
Q2'14 Q4'17
Cache
Cache
8 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 N/A
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013D PCG 2015C (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-2400
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® UHD Graphics 630
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.25 GHz 1.15 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
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 Intel Core i7-4790K, codenamed Devil's Canyon, is an upgraded 4770K, Intel's current flagship i7. The 4790K features an improved thermal interface which enables it to dissipate heat more efficiently than the 4770K. Comparing the 4770K and 4790K shows that stock performance has improved by 13% which is consistent with the base clock jump from 3.5 GHz to 4.0 GHz. OC performance remains unchanged. Comparing the 4790K and 4790 shows that at stock clocks the 4790K is around 16% faster which considering the small price difference makes the 4790K a far better choice. Previously Intel targeted the unlocked K versions at overclockers but with Devil's Canyon they have included VT-d on the K chip and this time it's squarely aimed at both power users and overclockers alike. Until the release of Broadwell in six months, the 4790K is the high end CPU of choice. [Jul '14 CPUPro]

MORE DETAILS

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) June 2019 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.
  • 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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