IntelBX80684I78700K
IntelBX80637I73770

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

4 Cores, 8 Threads @3.4GHz, Ivy Bridge.
Release date: Q1 2012.

Real World Speed
Performance profile from 305,834 user samples
217,688 User Benchmarks
Best Bench: 124% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 91% Base clock 3.7 GHz, turbo 4.35 GHz (avg)
Poor: 91% Great: 124%
SPEED RANK: 21st / 1144
Gaming
Gaming 107%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 95%
Nuclear submarine
88,146 User Benchmarks
Best Bench: 78% Base clock 4.1 GHz, turbo 4.9 GHz (avg)
Worst Bench: 59% Base clock 3.4 GHz
Poor: 59% Great: 78%
SPEED RANK: 158th / 1144
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 71%
Battleship
Workstation
Workstation 51%
Yacht
Effective Speed
Effective CPU Speed
107 % Much faster effective speed.
+56%
69.1 %
SC Mixed
Avg. Single Core Mixed Speed
138 Pts Much faster single-core speed.
+38%
100 Pts
QC Mixed
Avg. Quad Core Mixed Speed
521 Pts Much faster quad-core speed.
+56%
334 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1071 Pts Hugely faster multi-core speed.
+111%
508 Pts
SC Mixed
OC Single Core Mixed Speed
155 Pts Much faster OC single-core speed.
+42%
109 Pts
QC Mixed
OC Quad Core Mixed Speed
614 Pts Much faster OC quad-core speed.
+56%
394 Pts
MC Mixed
OC Multi Core Mixed Speed
1225 Pts Hugely faster OC multi-core speed.
+116%
567 Pts
Market Share
Based on 13,926,557 CPUs tested.
Market Share
Market Share (trailing 30 days)
3.04 % Hugely higher market share.
+204%
1 %
Value
Value For Money
98.7 % Much better value.
+65%
59.7 %
User Rating
UBM User Rating
156 % Hugely more popular.
+133%
67 %
Price
Price (score)
$366 Slightly cheaper.
+15%
$430
Age
Newest
15 Months Hugely more recent.
+82%
82 Months
TDP
Thermal Design Power (TDP)
95 Watts 77 Watts More energy efficient.
+19%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
12 threads Much higher thread count.
+50%
8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.7 GHz Slightly faster base frequency.
+9%
3.4 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Faster turbo frequency.
+21%
3.9 GHz
SC Int
Single Core Integer Speed
151 Pts Much faster single-core int speed.
+39%
109 Pts
SC Float
Single Core Floating Point Speed
159 Pts Much faster single-core fp speed.
+42%
112 Pts
QC Int
Quad Core Integer Speed
597 Pts Much faster quad-core int speed.
+53%
391 Pts
QC Float
Quad Core Floating Point Speed
634 Pts Much faster quad-core fp speed.
+59%
399 Pts
MC Int
Multi Core Integer Speed
1125 Pts Hugely faster multi-core int speed.
+101%
560 Pts
MC Float
Multi Core Floating Point Speed
1314 Pts Hugely faster multi-core fp speed.
+138%
551 Pts
Series
CPU Architecture
Coffee Lake Ivy Bridge
Socket
Motherboard Socket
FCLGA1151 FCLGA1155
Graphics
Integrated Graphics
UHD 630 HD 4000
Launch Date
Launch Date
Q4'17 Q2'12
Cache
Cache
12 MB 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX
Embedded Options Available
Embedded Options Available
No Yes
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
N/A $283.00 - $305.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) 2011D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3 1333/1600
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 4000
Graphics Base Frequency
Graphics Base Frequency
350 MHz 650 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.15 GHz
TSX-NI
Intel® TSX-NI
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 up to 1x16, 2x8, 1x8 & 2x4

More specs » More specs »
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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

MORE DETAILS

The Intel Core i7-3770 is an Ivy Bridge processor. With four cores and eight threads the 3770 has excellent single , dual and multi-core performance. Comparing the 3770 to the 4770K shows that the 4770K leads by 11% at stock speeds and, thanks to an unlocked multiplier on the 4770K, by 15% at overclocked frequencies. The i7-3770 has a very strong performance profile which includes multi-core capabilities that are likely to be overkill for the majority of desktop users. Comparing the 3770 to the 3770K shows that the unlocked 3770K allows for, on average, an additional 8% increase in performance. [Mar '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) January 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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CPUGPUSSD
Intel Core i7-8700K $366Nvidia GTX 1070 $350Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $159Nvidia GTX 1060-6GB $209Samsung 850 Evo 500GB $100
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $800SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $132SanDisk Ultra Fit 32GB $12
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