IntelBX80677I77700K
IntelBX80646I34340

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

2 Cores, 4 Threads @3.6GHz, Haswell.
Release date: Q3 2013.

Real World Speed
Performance profile from 713,178 user samples
712,312 User Benchmarks
Best Bench: 92% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 71% Base clock 4.2 GHz, turbo 0.2 GHz (avg)
Poor: 71% Great: 92%
SPEED RANK: 189th / 1442
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 70%
Battleship
866 User Benchmarks
Best Bench: 71% Base clock 3.6 GHz
Worst Bench: 49% Base clock 3.6 GHz, turbo 1.45 GHz (avg)
Poor: 49% Great: 71%
SPEED RANK: 509th / 1442
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 73%
Battleship
Workstation
Workstation 47%
Yacht
Effective Speed
Effective CPU Speed
84.2 % Much faster effective speed.
+31%
64.5 %
Memory
Avg. Memory Latency
89.6 Pts +5% 85.5 Pts
1-Core
Avg. Single Core Speed
127 Pts Much faster single-core speed.
+32%
96.1 Pts
2-Core
Avg. Dual Core Speed
242 Pts Much faster dual-core speed.
+43%
169 Pts
4-Core
Avg. Quad Core Speed
426 Pts Much faster quad-core speed.
+68%
253 Pts
8-Core
Avg. Octa Core Speed
647 Pts Hugely faster octa-core speed.
+153%
256 Pts
Memory
OC Memory Latency
96.5 Pts +2% 94.8 Pts
1-Core
OC Single Core Speed
142 Pts Much faster OC single-core speed.
+31%
108 Pts
2-Core
OC Dual Core Speed
275 Pts Much faster OC dual-core speed.
+36%
202 Pts
4-Core
OC Quad Core Speed
482 Pts Much faster OC quad-core speed.
+69%
286 Pts
8-Core
OC Octa Core Speed
737 Pts Hugely faster OC octa-core speed.
+159%
285 Pts
Market Share
Based on 67,695,893 CPUs tested
Market Share
Market Share (trailing 30 days)
1.19 % Insanely higher market share.
+∞%
0 %
Value
Value For Money
86.7 % 98.3 % Better value.
+13%
User Rating
UBM User Rating
83 % Much more popular.
+69%
49 %
Price
Price (score)
$250 $60 Much cheaper.
+76%
Age
Newest
87 Months Much more recent.
+33%
129 Months
TDP
Thermal Design Power (TDP)
91 Watts 54 Watts Much more energy efficient.
+41%
Cores
CPU Processing Cores
4 cores Hugely higher core count.
+100%
2 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
4.2 GHz Faster base frequency.
+17%
3.6 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz Faster turbo frequency.
+25%
3.6 GHz
64-Core
OC Multi Core Speed
747 Pts Hugely faster OC 64-core speed.
+161%
286 Pts
64-Core
Avg. Multi Core Speed
662 Pts Hugely faster 64-core speed.
+157%
258 Pts
Series
CPU Architecture
Kaby Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 630 HD 4600
Launch Date
Launch Date
Q1'17 Q3'13
Cache
Cache
8 MB 4 MB SmartCache
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $149.00 - $157.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2013C
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
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 Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

MORE DETAILS

The Intel Core i3-4340 is a budget dual-core four threaded 4th generation Haswell processor released in Q3 2013. At the time of release it was the top end Haswell Core i3 chip – offering great value for money, performance and power efficiency. It scores a strong effective speed of 89% with its base clock of 3.6 GHz which means that users will experience smooth and fast performance with the majority of desktop applications. Its two cores and four virtual cores are adequate for most games. The i3-4340 features Intel HD Graphics 4600 which are probably okay for playing some older games in 720p and are comparable AMD integrated graphics (for example, on the AMD A10-5800k) when it comes to 3D gaming. But serious gamers will need to have enough money left over after purchasing the i3-4340 to spend on a stand alone GPU. [Nov '14 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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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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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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 Frequently Asked Questions

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