IntelBX80633I74820K
Intel

4 Cores, 8 Threads @3.7GHz, Ivy Bridge-E.
Release date: Q3 2013.

  

4 Cores, 8 Threads @2.3 GHz, Haswell.
Release date ≈ Q3 2014.

Real World Speed
Performance profile from 28,493 user samples
23,169 User Benchmarks
Best Bench: 81% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 61% Base clock 3.7 GHz, turbo 3.75 GHz (avg)
Poor: 61% Great: 81%
SPEED RANK: 369th / 1456
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
5,324 User Benchmarks
Best Bench: 72% Base clock 2.3 GHz, turbo 3 GHz (avg)
Worst Bench: 40% Base clock 2.3 GHz, turbo 0.8 GHz (avg)
Poor: 40% Great: 72%
SPEED RANK: 567th / 1456
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed
71.8 % Faster effective speed.
+16%
61.7 %
Memory
Avg. Memory Latency
84.7 Pts Slightly lower memory latency.
+9%
77.6 Pts
1-Core
Avg. Single Core Speed
94 Pts Faster single-core speed.
+19%
78.8 Pts
2-Core
Avg. Dual Core Speed
182 Pts Faster dual-core speed.
+22%
149 Pts
4-Core
Avg. Quad Core Speed
320 Pts Faster quad-core speed.
+27%
251 Pts
8-Core
Avg. Octa Core Speed
477 Pts Much faster octa-core speed.
+31%
363 Pts
Memory
OC Memory Latency
94 Pts Slightly lower OC memory latency.
+6%
88.3 Pts
1-Core
OC Single Core Speed
116 Pts Faster OC single-core speed.
+23%
94.4 Pts
2-Core
OC Dual Core Speed
217 Pts Faster OC dual-core speed.
+17%
185 Pts
4-Core
OC Quad Core Speed
392 Pts Faster OC quad-core speed.
+19%
330 Pts
8-Core
OC Octa Core Speed
581 Pts Faster OC octa-core speed.
+23%
471 Pts
Market Share
Based on 68,125,214 CPUs tested
Market Share
Market Share (trailing 30 days)
0.05 % Hugely higher market share.
+400%
0.01 %
User Rating
UBM User Rating
55 % Slightly more popular.
+10%
50 %
Age
Newest
129 Months 117+ Months Slightly more recent.
+9%
64-Core
OC Multi Core Speed
583 Pts Faster OC 64-core speed.
+24%
470 Pts
64-Core
Avg. Multi Core Speed
487 Pts Much faster 64-core speed.
+35%
360 Pts
Launch Date
Launch Date
Q3'13 Q2'14
Cache
Cache
10 MB SmartCache 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.2, AVX, AES SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
N/A $378.00
Max Turbo Frequency
Max Turbo Frequency
3.9 GHz 3.3 GHz
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR3 1333/1600/1866 DDR3L 1333/1600
Memory Channels
Max # of Memory Channels
4 2
Memory Bandwidth
Max Memory Bandwidth
59.7 GB/s 25.6 GB/s
Package Size
Package Size
52.5mm x 45.0mm 37.5mm x 32mm x 1.6mm
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 3
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »
ADVERTISEMENT

This is yet another processor from Intel that demonstrates their total market domination in the high end PC sector. The 4820K isn't really a step forward in any particular direction but rather a variant on what's already been available (performance wise) for a few years. As long as Intel is largely competing with itself they will likely continue with these sorts of incremental releases. The 4820K requires an Intel X79 chipset, which dates back to Sandy Bridge-E and lacks some of the newer features like native USB 3.0 support. An investment in the 4820K only makes sense if you already own an LGA2011 Motherboard and could be seen as good money chasing bad given that the platform is due an upgrade. That said the 4820K is a very capable multi-core processor and it sits amongst the top handful of processors in this regard. For typical consumers a Haswell i3 will offer mostly identical response times, a lower energy footprint and a significantly more competitive price. [Nov '13 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) June 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]

ADVERTISEMENT

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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

 Best User Rated

Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $160Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $160
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $353
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback