IntelBX80562Q6600
IntelBX80684I78086K

4 Cores, 4 Threads @2.4GHz, Core.
Release date: Q1 2007.

6 Cores, 12 Threads @4.00 GHz, Coffee Lake.
Release date ≈ Q2 2018.

Real World Speed
Performance profile from 97,744 user samples
59,658 User Benchmarks
Best Bench: 50% Base clock 3.2 GHz, turbo 3.15 GHz (avg)
Worst Bench: 29% Base clock 2.4 GHz, turbo 2.4 GHz (avg)
Poor: 29% Great: 50%
SPEED RANK: 1017th / 1442
Gaming
Gaming 42%
Speed boat
Desktop
Desktop 43%
Speed boat
Workstation
Workstation 29%
Raft
38,086 User Benchmarks
Best Bench: 102% Base clock 4 GHz, turbo 5.15 GHz (avg)
Worst Bench: 81% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 81% Great: 102%
SPEED RANK: 135th / 1442
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 82%
Aircraft carrier
Effective Speed
Effective CPU Speed
41.6 % 90.8 % Hugely faster effective speed.
+118%
Memory
Avg. Memory Latency
65.3 Pts 91.6 Pts Much lower memory latency.
+40%
1-Core
Avg. Single Core Speed
29.9 Pts 132 Pts Hugely faster single-core speed.
+341%
2-Core
Avg. Dual Core Speed
59.9 Pts 256 Pts Hugely faster dual-core speed.
+327%
4-Core
Avg. Quad Core Speed
106 Pts 484 Pts Hugely faster quad-core speed.
+357%
8-Core
Avg. Octa Core Speed
109 Pts 800 Pts Hugely faster octa-core speed.
+634%
Memory
OC Memory Latency
76.4 Pts 97 Pts Lower OC memory latency.
+27%
1-Core
OC Single Core Speed
38.9 Pts 153 Pts Hugely faster OC single-core speed.
+293%
2-Core
OC Dual Core Speed
77.4 Pts 304 Pts Hugely faster OC dual-core speed.
+293%
4-Core
OC Quad Core Speed
147 Pts 580 Pts Hugely faster OC quad-core speed.
+295%
8-Core
OC Octa Core Speed
147 Pts 948 Pts Hugely faster OC octa-core speed.
+545%
Market Share
Based on 67,745,632 CPUs tested
Market Share
Market Share (trailing 30 days)
0.02 % 0.07 % Hugely higher market share.
+250%
Value
Value For Money
55.1 % 82.3 % Much better value.
+49%
User Rating
UBM User Rating
56 % +2% 55 %
Price
Price (score)
$100 Much cheaper.
+75%
$399
Age
Newest
207 Months 70+ Months Much more recent.
+66%
64-Core
OC Multi Core Speed
148 Pts 1194 Pts Hugely faster OC 64-core speed.
+707%
64-Core
Avg. Multi Core Speed
111 Pts 1008 Pts Hugely faster 64-core speed.
+808%
Launch Date
Launch Date
Q1'07 Q2'18
Cache
Cache
8 MB L2 12 MB SmartCache
Lithography
Lithography
65 nm 14 nm
Bus Speed
Bus Speed
1066 MHz FSB 8 GT/s DMI3
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
AES New Instructions
Intel® AES New Instructions
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes

More specs » More specs »
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The Core2 Quad Q6600 is over 7 years old which is a lot of processor lifetimes! This particular model has been included in the group test simply as a reference because of its exceptional popularity back when it was at the forefront of technological advance. The Q6600's four physical cores demonstrate exceptional overclocking capacity and often achieve in excess of 40% performance increases. Modern Quad core processors offer nearly three times more performance on both single and multi-core workloads. There have also been lots of non-processing related improvements in the platform over the last 7 years which include SATA 600 MB/s, USB 3.0 PCIe and more. [Mar '14 CPUPro]

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Intel are celebrating the 40th anniversary of their x86 architecture and 8086 processor with the launch of their high-end i7-8086K. Just 50,000 units of this hex core, twelve threaded Coffee Lake processor have been made available globally. Exactly like the i7-8700K, the 8086K features 12MB of smart (L3) cache, 2 channels of DDR4 RAM and has a TDP of 95W. Essentially, the 8086K is Intel’s current Coffee Lake flagship, the i7-8700K, with a single-core turbo frequency factory overclocked by 300 MHz. Thermals permitting, out of the box, the i7-8086K achieves a single core boost speed of 5.0 GHz – which is a new record for Intel. That said, you would be unlucky if you were unable to achieve a 5.0 GHz single core OC with an 8700K. For everything other than single core, the turbo clock speeds on the 8086K exactly match the 8700K which puts the 8086K firmly into gimmick territory. Directly comparing the 8086K and 8700K shows that for a $100 (24%) price premium you get around a 5% performance improvement which drops to around 2% when both chips are overclocked. If the price gap between the 8086K and the 8700K were to fall to less than 20 USD it may be worth considering the 8086K. [Jun '18 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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 Frequently Asked Questions

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