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IntelBX80684I78700K
IntelBX80623I52500K
$246
▲ 8214,553 ▼

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

VS
▲ 769,602 ▼
 $246 

4 Cores, 4 Threads @3.3GHz, Sandy Bridge.
Release date: Q1 2011.

Effective Speed 
+34%
Real World Speed
Performance profile from 889,294 user samples
Benchmark your CPU here
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
143,007 User Benchmarks
Best Bench: 79% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 44% Base clock 3.3 GHz, turbo 0.5 GHz (avg)
Poor: 44% Great: 79%
SPEED RANK: 505th / 1468
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 72%
Battleship
Workstation
Workstation 49%
Yacht
Effective Speed
Effective CPU Speed 		88.4 % Much faster effective speed.
+34% 		65.9 %
Average Score 
+64%
Memory
Avg. Memory Latency 		90.1 Pts Slightly lower memory latency.
+8% 		83.1 Pts
1-Core
Avg. Single Core Speed 		128 Pts Much faster single-core speed.
+45% 		88.4 Pts
2-Core
Avg. Dual Core Speed 		249 Pts Much faster dual-core speed.
+43% 		174 Pts
4-Core
Avg. Quad Core Speed 		466 Pts Much faster quad-core speed.
+66% 		281 Pts
8-Core
Avg. Octa Core Speed 		770 Pts Hugely faster octa-core speed.
+157% 		300 Pts
Overclocked Score 
+46%
Memory
OC Memory Latency 		96.5 Pts +2% 94.9 Pts
1-Core
OC Single Core Speed 		148 Pts Faster OC single-core speed.
+30% 		114 Pts
2-Core
OC Dual Core Speed 		292 Pts Faster OC dual-core speed.
+29% 		227 Pts
4-Core
OC Quad Core Speed 		558 Pts Much faster OC quad-core speed.
+47% 		380 Pts
8-Core
OC Octa Core Speed 		892 Pts Hugely faster OC octa-core speed.
+124% 		399 Pts
Value & Sentiment 
+349%
Market Share
Based on 68,930,309 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.41 % Insanely higher market share.
+1,310% 		0.1 %
Value
Value For Money 		100 % Much better value.
+47% 		68.2 %
User Rating
UBM User Rating 		82 % Slightly more popular.
+8% 		76 %
Price
Price (score) 		$175 Cheaper.
+29% 		$246
Nice To Haves 
+88%
Age
Newest 		85 Months Much more recent.
+49% 		166 Months
TDP
Thermal Design Power (TDP) 		95 Watts 95 Watts
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		12 threads Hugely higher thread count.
+200% 		4 threads
Lithography
Manufacturing process 		14 nm Much newer manufacturing.
+56% 		32 nm
Base Clock
Base Clock Speed 		3.7 GHz Faster base frequency.
+12% 		3.3 GHz
Turbo Clock
Turbo Clock Speed 		4.7 GHz Faster turbo frequency.
+27% 		3.7 GHz
64-Core
OC Multi Core Speed 		1147 Pts Hugely faster OC 64-core speed.
+182% 		407 Pts
64-Core
Avg. Multi Core Speed 		971 Pts Hugely faster 64-core speed.
+219% 		304 Pts
Specifications 
Series
CPU Architecture 		Coffee Lake Sandy Bridge
Socket
Motherboard Socket 		FCLGA1151 LGA1155
Graphics
Integrated Graphics 		UHD 630 HD 3000
Launch Date
Launch Date 		Q4'17 Q1'11
Cache
Cache 		12 MB 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX
Lithography
Lithography 		14 nm 32 nm
Max Turbo Frequency
Max Turbo Frequency 		4.70 GHz 3.7 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4-2666 DDR3 1066/1333
Processor Graphics
Processor Graphics ‡ 		Intel® UHD Graphics 630 Intel® HD Graphics 3000
Graphics Base Frequency
Graphics Base Frequency 		350 MHz 850 MHz
# of Displays Supported
# of Displays Supported ‡ 		3 2
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.20 GHz 1.1 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡ 		Yes No
vPro Tech
Intel® vPro™ Technology ‡ 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No
PCI Express Revision
PCI Express Revision 		3.0 2.0

More specs » More specs »
Conclusion 
Average Bench 88.4%
Average Bench 65.9%

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 i5-2500K is a second generation Sandy Bridge processor which is currently two generations old and nearly three years out of date. The many users that had the good sense to purchase this processor should feel in no hurry to upgrade as it's still no slouch, even by today's standards. The benchmark figures indicate that, even at stock clock rates, in terms of real-world performance this processor is approximately 20% slower than the best currently available, not bad considering its age. Given that the 2500K has an unlocked multiplier upping its performance by 10% with stock cooling should not pose much of a problem for the majority of owners. Here is a detailed performance comparison of the 2500K vs 4670K.  [Jul '13 CPUPro]

MORE DETAILS

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Intel Core i5-12600K $169Nvidia RTX 4060 $298WD Black SN850X M.2 2TB $135
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