IntelBX80633I74820K
IntelBX80646I74770K

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

4 Cores, 8 Threads @3.5GHz, Haswell.
Release date: Q1 2013.

Real World Speed
Performance profile from 196,056 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: 361st / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
172,887 User Benchmarks
Best Bench: 84% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 60% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 60% Great: 84%
SPEED RANK: 327th / 1442
Gaming
Gaming 74%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 60%
Gunboat
Effective Speed
Effective CPU Speed
71.8 % 73.6 % +2%
Memory
Avg. Memory Latency
84.7 Pts 85.6 Pts +1%
1-Core
Avg. Single Core Speed
94 Pts 101 Pts Slightly faster single-core speed.
+7%
2-Core
Avg. Dual Core Speed
182 Pts 192 Pts Slightly faster dual-core speed.
+5%
4-Core
Avg. Quad Core Speed
320 Pts 334 Pts +4%
8-Core
Avg. Octa Core Speed
477 Pts 497 Pts +4%
Memory
OC Memory Latency
94 Pts 96 Pts +2%
1-Core
OC Single Core Speed
116 Pts 122 Pts Slightly faster OC single-core speed.
+5%
2-Core
OC Dual Core Speed
217 Pts 232 Pts Slightly faster OC dual-core speed.
+7%
4-Core
OC Quad Core Speed
392 Pts 403 Pts +3%
8-Core
OC Octa Core Speed
581 Pts 609 Pts +5%
Market Share
Based on 67,714,039 CPUs tested
Market Share
Market Share (trailing 30 days)
0.04 % 0.38 % Hugely higher market share.
+850%
Value
Value For Money
92.7 % 92.7 % +0%
User Rating
UBM User Rating
55 % 64 % More popular.
+16%
Price
Price (score)
$110 Slightly cheaper.
+8%
$120
Age
Newest
127 Months +5% 133 Months
TDP
Thermal Design Power (TDP)
130 Watts 84 Watts Much more energy efficient.
+35%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
22 nm 22 nm
Base Clock
Base Clock Speed
3.7 GHz Slightly faster base frequency.
+6%
3.5 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz 3.9 GHz
64-Core
OC Multi Core Speed
583 Pts 620 Pts Slightly faster OC 64-core speed.
+6%
64-Core
Avg. Multi Core Speed
487 Pts 513 Pts Slightly faster 64-core speed.
+5%
Series
CPU Architecture
Ivy Bridge-E Haswell
Socket
Motherboard Socket
FCLGA2011 FCLGA1150
Graphics
Integrated Graphics
None HD 4600
Launch Date
Launch Date
Q3'13 Q2'13
Cache
Cache
10 MB SmartCache 8 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 $339.00 - $350.00
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR3 1333/1600/1866 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
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 37.5mm
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 Up to 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

More specs » More specs »
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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

The Core i7-4770K is Intel's fourth generation (codename Haswell) flagship processor in the hugely successful Core range. It's not surprising that the 4770K sets a new Real World Performance index record, besting its predecessor by just over 9%. The 4770K also tops out in the remainder of our benchmarks setting new highs of 10020 and 2164 in the PassMark and PassMark Single Thread tests which equates to roughly an 8% overall performance increase over the 3770K. With a TDP of 84 watts, power consumption has increased slightly over the 3770K. The new Core i7-4770K demonstrates around an 8% performance increase over its predecessor the 3770K but it costs 12% more. As a result, at least until prices drop, this processor represents marginally worse value for money than the 3770K. [Jun '13 CPUPro]

MORE DETAILS

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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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.

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How it works

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  • - CPU tests include: integer, floating and string
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  • - 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
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HDDRAMUSB
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WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
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