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Intel
IntelBX80684I78700K
▲ 53146 ▼

4 Cores, 8 Threads @2.8 GHz, Bloomfield.
Release date ≤ Q4 2013.

VS
▲ 8214,563 ▼

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

Effective Speed 
+38%
Real World Speed
Performance profile from 765,784 user samples
Benchmark your CPU here
19,497 User Benchmarks
Best Bench: 72% Base clock 2.8 GHz, turbo 2.5 GHz (avg)
Worst Bench: 52% Base clock 2.8 GHz, turbo 1.65 GHz (avg)
Poor: 52% Great: 72%
SPEED RANK: 541st / 1468
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 48%
Yacht
746,287 User Benchmarks
Best Bench: 100% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 76% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 76% Great: 100%
SPEED RANK: 167th / 1468
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 80%
Battleship
Effective Speed
Effective CPU Speed 		64 % 88.4 % Much faster effective speed.
+38%
Average Score 
+83%
Memory
Avg. Memory Latency 		85.9 Pts 90.1 Pts +5%
1-Core
Avg. Single Core Speed 		69.8 Pts 128 Pts Hugely faster single-core speed.
+83%
2-Core
Avg. Dual Core Speed 		134 Pts 249 Pts Hugely faster dual-core speed.
+86%
4-Core
Avg. Quad Core Speed 		232 Pts 466 Pts Hugely faster quad-core speed.
+101%
8-Core
Avg. Octa Core Speed 		323 Pts 770 Pts Hugely faster octa-core speed.
+138%
Overclocked Score 
+75%
Memory
OC Memory Latency 		95 Pts 96.5 Pts +2%
1-Core
OC Single Core Speed 		84.7 Pts 148 Pts Much faster OC single-core speed.
+75%
2-Core
OC Dual Core Speed 		163 Pts 292 Pts Much faster OC dual-core speed.
+79%
4-Core
OC Quad Core Speed 		292 Pts 558 Pts Hugely faster OC quad-core speed.
+91%
8-Core
OC Octa Core Speed 		394 Pts 892 Pts Hugely faster OC octa-core speed.
+126%
Value & Sentiment 
+3,720%
Market Share
Based on 69,047,592 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 1.49 % Insanely higher market share.
+14,800%
Value
Value For Money 		76.5 % 103 % Much better value.
+34%
User Rating
UBM User Rating 		53 % 82 % Much more popular.
+55%
Price
Price (score) 		$145 Slightly cheaper.
+9% 		$160
Nice To Haves 
+139%
Age
Newest 		131+ Months 85 Months Much more recent.
+35%
64-Core
OC Multi Core Speed 		402 Pts 1,147 Pts Hugely faster OC 64-core speed.
+185%
64-Core
Avg. Multi Core Speed 		329 Pts 971 Pts Hugely faster 64-core speed.
+195%
Specifications 
Launch Date
Launch Date 		Q1'10 Q4'17
Cache
Cache 		8 MB SmartCache 12 MB
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2 SSE4.1/4.2, AVX2
Lithography
Lithography 		45 nm 14 nm
Recommended Price
Recommended Customer Price 		$305.00 N/A
Max Turbo Frequency
Max Turbo Frequency 		3.06 GHz 4.70 GHz
Bus Speed
Bus Speed 		4.8 GT/s QPI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type) 		24 GB 64 GB
Memory Types
Memory Types 		DDR3 800/1066 DDR4-2666
Memory Channels
Max # of Memory Channels 		3 2
Package Size
Package Size 		42.5mm x 45.0mm 37.5mm x 37.5mm
Thermal Monitoring Technologies
Thermal Monitoring Technologies 		No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		1.0 2.0
AES New Instructions
Intel® AES New Instructions 		No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		No Yes

More specs » More specs »
Conclusion 
Average Bench 64%
Average Bench 88.4%

Don't be fooled by the "i7" name. It performs like a Core 2 Quad with Hyperthreading. Overall performance is fine, but the processor is so insanely power hungry that your power bill will actually take a small hit. Similar to FX processors, it is a glorified space heater with bad IPC. [Apr '20 Viriyena]

MORE DETAILS

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

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