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IntelBX80684I38100
IntelBX80684I78700K

4 Cores, 4 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

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

Real World Speed
Performance profile from 827,679 user samples
81,392 User Benchmarks
Best Bench: 80% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 53% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 53% Great: 80%
SPEED RANK: 408th / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 53%
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
70.6 % 88.4 % Faster effective speed.
+25%
14 Nov19|PCGamer
AMD Ryzen 9 3950X review
37 % Hitm2 51%, FarC5 32%, StrangeB 1%, TWarW2 45%, SotTR 46%, ACO 60%, MetroEx 11%, MESoW 10%, Divis2 76%
Memory
Avg. Memory Latency
81.8 Pts 90.1 Pts Lower memory latency.
+10%
1-Core
Avg. Single Core Speed
106 Pts 128 Pts Faster single-core speed.
+21%
2-Core
Avg. Dual Core Speed
210 Pts 249 Pts Faster dual-core speed.
+19%
4-Core
Avg. Quad Core Speed
342 Pts 466 Pts Much faster quad-core speed.
+36%
8-Core
Avg. Octa Core Speed
359 Pts 770 Pts Hugely faster octa-core speed.
+114%
Memory
OC Memory Latency
93.4 Pts 96.5 Pts +3%
1-Core
OC Single Core Speed
112 Pts 148 Pts Much faster OC single-core speed.
+32%
2-Core
OC Dual Core Speed
224 Pts 292 Pts Much faster OC dual-core speed.
+30%
4-Core
OC Quad Core Speed
408 Pts 558 Pts Much faster OC quad-core speed.
+37%
8-Core
OC Octa Core Speed
419 Pts 892 Pts Hugely faster OC octa-core speed.
+113%
Market Share
Based on 68,908,715 CPUs tested
Market Share
Market Share (trailing 30 days)
0.23 % 1.4 % Hugely higher market share.
+509%
Value
Value For Money
84 % 101 % Better value.
+20%
User Rating
UBM User Rating
67 % 82 % More popular.
+22%
Price
Price (score)
$148 Cheaper.
+13%
$170
Age
Newest
85 Months 85 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+32%
95 Watts
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
4 threads 12 threads Hugely higher thread count.
+200%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed
3.6 GHz 4.7 GHz Much faster turbo frequency.
+31%
64-Core
OC Multi Core Speed
420 Pts 1147 Pts Hugely faster OC 64-core speed.
+173%
64-Core
Avg. Multi Core Speed
364 Pts 971 Pts Hugely faster 64-core speed.
+167%
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Cache
Cache
6 MB 12 MB
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015C (130W)
Memory Types
Memory Types
DDR4-2400 DDR4-2666
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.10 GHz 1.20 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes

More specs » More specs »

Intel’s i3-8100 from their 8th generation of Core processors is a mainstream quad-core CPU. It is the entry model of the latest Coffee Lake line up with a clock speed of 3.6 GHz. Previously, i3 Kaby Lake processors had two cores with hyperthreading, but now, i3 Coffee Lake processors have 4 cores and offer much better value for money in terms of dollars per core. With a performance profile that closely matches last years mid range Kaby Lake i5's (the then go-to mid range gaming choice) and a price tag of just $120, the i3-8100 represents excellent value for money. Unfortunately, like all Coffe Lake processors, the i3-8100 does require a new 300-series motherboard even though it shares the same LGA1151 socket as the previous generation of Kaby Lake 200 motherboards. Intel were clearly mindful of AMD's similarly priced quad core Ryzen 3 1200 which achieves very comparable single, and quad-core benchmarks to the i3-8100.  [Oct '17 CPUPro]

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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

Processor Rankings (Price vs Performance) November 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]

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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