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IntelBX80673I77820X
IntelBX80677I77740X
▲ 631,512 ▼

8 Cores, 16 Threads @3.6GHz, Skylake-X.
Release date: Q2 2017.

VS
▲ 53240 ▼

4 Cores, 8 Threads @4.30 GHz, Kaby Lake.
Release date ≈ Q3 2017.

Effective Speed 
+9%
Real World Speed
Performance profile from 33,618 user samples
Benchmark your CPU here
28,524 User Benchmarks
Best Bench: 92% Base clock 3.6 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 3.6 GHz, turbo 3.85 GHz (avg)
Poor: 70% Great: 92%
SPEED RANK: 233rd / 1442
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 81%
Aircraft carrier
5,094 User Benchmarks
Best Bench: 96% Base clock 4.3 GHz, turbo 5.15 GHz (avg)
Worst Bench: 74% Base clock 4.3 GHz, turbo 1 GHz (avg)
Poor: 74% Great: 96%
SPEED RANK: 160th / 1442
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 74%
Battleship
Effective Speed
Effective CPU Speed 		80.1 % 87 % Slightly faster effective speed.
+9%
Average Score 
+3%
Memory
Avg. Memory Latency 		75.5 Pts 90.5 Pts Lower memory latency.
+20%
1-Core
Avg. Single Core Speed 		121 Pts 133 Pts Slightly faster single-core speed.
+10%
2-Core
Avg. Dual Core Speed 		238 Pts 252 Pts Slightly faster dual-core speed.
+6%
4-Core
Avg. Quad Core Speed 		455 Pts +1% 451 Pts
8-Core
Avg. Octa Core Speed 		822 Pts Faster octa-core speed.
+18% 		699 Pts
Overclocked Score 
+2%
Memory
OC Memory Latency 		85 Pts 96.7 Pts Lower OC memory latency.
+14%
1-Core
OC Single Core Speed 		138 Pts 151 Pts Slightly faster OC single-core speed.
+9%
2-Core
OC Dual Core Speed 		272 Pts 293 Pts Slightly faster OC dual-core speed.
+8%
4-Core
OC Quad Core Speed 		533 Pts +0% 532 Pts
8-Core
OC Octa Core Speed 		976 Pts Faster OC octa-core speed.
+19% 		819 Pts
Value & Sentiment 
+60%
Market Share
Based on 67,808,167 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % Hugely higher market share.
+300% 		0.01 %
Value
Value For Money 		73.8 % 96.8 % Much better value.
+31%
User Rating
UBM User Rating 		63 % More popular.
+19% 		53 %
Price
Price (score) 		$375 $189 Much cheaper.
+50%
Nice To Haves 
+51%
Age
Newest 		82 Months 82+ Months
64-Core
OC Multi Core Speed 		1445 Pts Much faster OC 64-core speed.
+75% 		824 Pts
64-Core
Avg. Multi Core Speed 		1263 Pts Much faster 64-core speed.
+78% 		710 Pts
Specifications 
Cache
Cache 		11 MB L3 8 MB
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0, AVX-512 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price 		$589.00 - $599.00 $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency 		4.30 GHz 4.50 GHz
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 64 GB
Memory Channels
Max # of Memory Channels 		4 2
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		28 16

More specs » More specs »
Conclusion 
Average Bench 80.1%
Average Bench 87%
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The I7-7820X is the second of three new Skylake-X HEDT (high end desktop processors) released by Intel as part of their core X series (the others being the flagship 10-core i9-7900X and the 6-core i7-7800X). The 7820X is an 8-core, 16-thread CPU which will amply satisfy all but the heaviest of multi-threaded use cases. The 7820X requires a relatively expensive X299 (Basin Falls) motherboard, which costs upwards of $250. The 7820X is listed at $599 which is about $200 more than AMD's current flagship 8-core, 16 thread Ryzen 7 1800X. In addition to better IPC, the 7820X is higher clocked with base and max boost clocks of 3.6/4.5 GHz respectively, compared to 3.6G/4.0 GHz for the Ryzen 7 1800X. The additional $200 (50%) buys you around 20% more performance in both single and multi core workloads. Intel have also released several Kabylake-X HEDT CPUs: the 4-thread i5-7640X and the 8-thread i7-7740X and will shortly release of even higher spec Skylake-X processors. It's probably wise to hold off purchasing until the eagerly anticipated 16-core, 32-thread Ryzen Threadripper CPUs are launched later this month. [Jul '17 CPUPro]

MORE DETAILS

Kaby Lake-X CPUs is probably one of the Intel's most embarrassing release ever for their HEDT platform. Requires X299 motherboard and only offered 16 PCIe lanes whilst being only little better than i7-7700K. [Oct '19 ColdSpy]

MORE DETAILS

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 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
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Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
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