IntelBX80684G5600
IntelBX80646I74790K
$348

2 Cores, 4 Threads @3.90 GHz, Coffee Lake.
Release date ≈ Q1 2018.

 $348 

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

Real World Speed
Performance profile from 456,512 user samples
766 User Benchmarks
Best Bench: 76% Base clock 3.9 GHz, turbo 3.9 GHz (avg)
Worst Bench: 56% Base clock 3.9 GHz, turbo 0.8 GHz (avg)
Poor: 56% Great: 76%
SPEED RANK: 414th / 1451
Gaming
Gaming 70%
Battle cruiser
Desktop
Desktop 79%
Battleship
Workstation
Workstation 51%
Yacht
455,746 User Benchmarks
Best Bench: 87% Base clock 4 GHz, turbo 4.6 GHz (avg)
Worst Bench: 67% Base clock 4 GHz, turbo 0.7 GHz (avg)
Poor: 67% Great: 87%
SPEED RANK: 259th / 1451
Gaming
Gaming 79%
Battleship
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
69.6 % 78.9 % Faster effective speed.
+13%
Memory
Avg. Memory Latency
86.1 Pts 88.1 Pts +2%
1-Core
Avg. Single Core Speed
113 Pts 114 Pts +1%
2-Core
Avg. Dual Core Speed
199 Pts 216 Pts Slightly faster dual-core speed.
+9%
4-Core
Avg. Quad Core Speed
308 Pts 378 Pts Faster quad-core speed.
+23%
8-Core
Avg. Octa Core Speed
313 Pts 560 Pts Much faster octa-core speed.
+79%
Memory
OC Memory Latency
95 Pts 96.8 Pts +2%
1-Core
OC Single Core Speed
124 Pts 128 Pts +3%
2-Core
OC Dual Core Speed
232 Pts 248 Pts Slightly faster OC dual-core speed.
+7%
4-Core
OC Quad Core Speed
346 Pts 433 Pts Faster OC quad-core speed.
+25%
8-Core
OC Octa Core Speed
346 Pts 643 Pts Hugely faster OC octa-core speed.
+86%
Market Share
Based on 68,072,866 CPUs tested
Market Share
Market Share (trailing 30 days)
0 % 0.62 % Insanely higher market share.
+∞%
Value
Value For Money
103 % Much better value.
+39%
74.2 %
User Rating
UBM User Rating
52 % 88 % Much more popular.
+69%
Price
Price (score)
$67 Hugely cheaper.
+81%
$348
Age
Newest
74+ Months Much more recent.
+38%
120 Months
64-Core
OC Multi Core Speed
346 Pts 654 Pts Hugely faster OC 64-core speed.
+89%
64-Core
Avg. Multi Core Speed
314 Pts 573 Pts Hugely faster 64-core speed.
+82%
Launch Date
Launch Date
Q2'18 Q2'14
Cache
Cache
4 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$86.00 - $93.00 $339.00 - $350.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2400 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
37.5 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 4600
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.10 GHz 1.25 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
OS Guard
Intel® OS Guard
No Yes

More specs » More specs »
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Too expensive vs the $85 Ryzen 5 1600 AF. [Jan '20 Test19]

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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]

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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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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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