IntelBX80648I75820K
IntelBX80646I54690

6 Cores, 12 Threads @3.3GHz, Haswell-E.
Release date: Q3 2014.

4 Cores, 4 Threads @3.5GHz, Haswell.
Release date: Q2 2014.

Real World Speed
Performance profile from 175,389 user samples
101,694 User Benchmarks
Best Bench: 88% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 68% Base clock 3.3 GHz, turbo 1.2 GHz (avg)
Poor: 68% Great: 88%
SPEED RANK: 281st / 1441
Gaming
Gaming 77%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 67%
Battle cruiser
73,695 User Benchmarks
Best Bench: 77% Base clock 3.5 GHz, turbo 3.9 GHz (avg)
Worst Bench: 50% Base clock 3.5 GHz, turbo 3.5 GHz (avg)
Poor: 50% Great: 77%
SPEED RANK: 459th / 1441
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 73%
Battleship
Workstation
Workstation 50%
Yacht
Effective Speed
Effective CPU Speed
76.8 % Faster effective speed.
+14%
67.1 %
Memory
Avg. Memory Latency
86.4 Pts Slightly lower memory latency.
+7%
81.1 Pts
1-Core
Avg. Single Core Speed
96.3 Pts +0% 96.1 Pts
2-Core
Avg. Dual Core Speed
192 Pts +2% 189 Pts
4-Core
Avg. Quad Core Speed
364 Pts Faster quad-core speed.
+19%
306 Pts
8-Core
Avg. Octa Core Speed
594 Pts Hugely faster octa-core speed.
+83%
324 Pts
Memory
OC Memory Latency
94 Pts +1% 93.2 Pts
1-Core
OC Single Core Speed
120 Pts Faster OC single-core speed.
+13%
106 Pts
2-Core
OC Dual Core Speed
237 Pts Faster OC dual-core speed.
+13%
209 Pts
4-Core
OC Quad Core Speed
462 Pts Faster OC quad-core speed.
+21%
382 Pts
8-Core
OC Octa Core Speed
737 Pts Hugely faster OC octa-core speed.
+90%
387 Pts
Market Share
Based on 67,818,061 CPUs tested
Market Share
Market Share (trailing 30 days)
0.19 % Much higher market share.
+36%
0.14 %
Value
Value For Money
94.7 % 107 % Better value.
+13%
User Rating
UBM User Rating
66 % More popular.
+20%
55 %
Price
Price (score)
$130 $51 Much cheaper.
+60%
Age
Newest
117 Months +2% 120 Months
TDP
Thermal Design Power (TDP)
140 Watts 84 Watts Much more energy efficient.
+40%
Cores
CPU Processing Cores
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+200%
4 threads
Lithography
Manufacturing process
22 nm 22 nm
Base Clock
Base Clock Speed
3.3 GHz 3.5 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
3.6 GHz 3.9 GHz Slightly faster turbo frequency.
+8%
64-Core
OC Multi Core Speed
933 Pts Hugely faster OC 64-core speed.
+140%
388 Pts
64-Core
Avg. Multi Core Speed
748 Pts Hugely faster 64-core speed.
+129%
327 Pts
Series
CPU Architecture
Haswell-E Haswell
Socket
Motherboard Socket
LGA2011-V3 FCLGA1150
Graphics
Integrated Graphics
None HD 4600
Launch Date
Launch Date
Q3'14 Q2'14
Cache
Cache
15 MB SmartCache 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.2, AVX 2.0, AES SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
$389.00 - $396.00 $213.00 - $224.00
Max Turbo Frequency
Max Turbo Frequency
3.6 GHz 3.9 GHz
Bus Speed
Bus Speed
0 GT/s 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4 1333/1600/2133 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Channels
Max # of Memory Channels
4 2
Memory Bandwidth
Max Memory Bandwidth
68 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
None Intel® HD Graphics 4600
Package Size
Package Size
52.5mm x 45.0mm 37.5mm x 37.5mm
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
3.0 Up to 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes
28 16

More specs » More specs »
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The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 CPUPro]

MORE DETAILS

The Core i5-4690 is Intel's latest and greatest locked Core-i5. This CPU will suit serious gamers that don't plan on overclocking. The 4690 replaces the 4670 and shares exactly the same specs aside from base and turbo clock bumps of 100 MHz. The 100 MHz clock bump results in barely noticeable real world performance improvements and, if anything, makes the older 4670 more attractive as suppliers reduce prices to try to clear stocks. For regular desktop use such as email, surfing, and listening to music, this CPU is overkill and there is far better value amongst lower powered and significantly cheaper CPUs but for gamers and moderate power users the 4690 is a good locked option. [Jun '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 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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