Intel Core i7 3930K 

Released November, 2011
  • 3.2 GHz
  • Hexa core
  • Unlocked
5.9 Out of 10

The Intel Core i7 3930K is a powerhouse of a processor that is up there, on par with one of the best processors in the Sandy Bridge series- the i7-3960X. The 3930K may not have all the characteristics of the 3960X, but what makes it a satisfaction to all, but the most die-hard fans of the Sandy Bridge series, is its price which is almost half than the price of the 3960X. The differences between the two processors is minimal, with the 3930K clocking at 3.2GHz, instead of at 3.3GHz; and a cache of 12MB instead of the 15MB of the faster chip. But that’s the biggest differences between the two, which means the 3930K will be able to fulfill any task you give it, and still have leftover processing power.

CPUBoss Review Our evaluation of the Intel Core i7 3930K among desktop CPUs (over 75W)


Benchmark performance using all cores

Core i7 3930K
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core i7 3930K
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core i7 3930K
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core i7 3930K
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core i7 3930K
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


Are you paying a premium for performance?

Core i7 3930K
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


CPUBoss Score

Combination of all six facets

Core i7 3930K

Benchmarks Real world tests of the Intel Core i7 3930K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 3930K
Core i7 4770K
Core i7 4930K

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 3930K

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 3930K
2,430,000 MB/s
Core i7 4770K
4,810,000 MB/s
Core i7 4930K
2,430,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 3930K
Core i7 4770K
Core i7 4930K

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 3930K
Core i7 4770K
Core i7 4930K


Core i7 3930K
Core i7 4770K
Core i7 4930K

PassMark Data courtesy Passmark

Core i7 3930K
Core i7 4770K
Core i7 4930K

PassMark (Single Core)

Core i7 3930K

Reviews Word on the street for the Intel Core i7 3930K

s Core i7-3930K processor represents an unparalleled combination of price and performance for use on the X79 Express platform.

And despite the fact it's over £300 cheaper than the top end chip, the Core i7 3930K is still an incredibly pricey processor.

What's even better is that I've effortlessly OCed this CPU to 4.7GHz and temps are only around 60°C at full 100% load, which is wonderful.


9.1 Out of 10

What People Are Saying Give it to me straight

Socket Type

Again the gap is just 100MHz, 4.8GHz on airs plays 4.9GHz.
by Tech Radar (Dec, 2011)
At nearly £500 it's still an expensive CPU, but currently it's the only LGA 2011 processor worth a look.
by Tech Radar (Dec, 2011)
However, it still costs around 500.
by UltraVolta425 (Jun, 2012)


I do a lot of hardware virtualization on my computer so I can always use all the extra threads the only small issue with the thing is being able to cool it, I have this cpu running at 4.5 GHz @ 1.4v and my h100 only can manage keeping it at about 82C.
by jost4318 (Jan, 2013)
You should note, however, that you also won’t save a significant amount on energy usage: In our measurements conducted with an Extech Datalogger, the Core i7-3930K’s 122.5-watt draw at idle and 233.7-watt draw under full load was not far removed from Core i7-3960X’s respective 124.1-watt and 243.2-watt draws.
by PCMag (Mar, 2012)
On the full-system Futuremark PCMark 7 benchmark, the scores followed exactly the same pattern: The overall score was 3,643 versus 3,594, with the individual tests similarly matched.
by PCMag (Mar, 2012)


Four channels is getting silly and merely serves to underline the real reason the new Core i7 exists.
by Tech Radar (Dec, 2011)
What's more, thanks to the 'K' on the end of Intel Core i7 3930K, this lower priced alternative to the Intel Core i7 3960X gets the full unlocked treatment and also benefits from the newly introduced CPU strap, the better to make overclocking a bit more flexible.
by Tech Radar (Dec, 2011)
Our tests calibrated for more component-level performance, AIDA64, SiSoftware Sandra 2012, and Geekbench 2.2, proved just as conclusive: There is almost no performance differential between the Core i7-3930K and the Core i7-3960X that most users will find significant enough to be worth the extra $416 or so it will cost to get them.
by PCMag (Mar, 2012)


Intel's previous high end processors sported a triple channel memory controller.
by Tech Radar (Dec, 2011)
When advising people on buying most performance-oriented components, we usually recommend taking a single step back from the top of the line: There’s frequently a bigger difference in price than in capability between the bleeding edge and the next best.
by PCMag (Mar, 2012)
The Core i7-3930K has 12MB of cache to the faster chip’s 15MB, and a clock rate of 3.2GHz instead of 3.3GHz that can rise to a maximum of 3.8GHz instead of 3.9GHz when Turbo Boost is enabled.
by PCMag (Mar, 2012)


As evaluated on a test system using an Asus P9X79 Deluxe motherboard, the Core i7-3930K applied a dozen filters and effects to an image in Adobe Photoshop CS5 in 2 minutes 53 seconds, as opposed to the Core i7-3960X’s 2 minutes 48 seconds.
by PCMag (Mar, 2012)

Specifications Full list of technical specs


Clock speed 3.2 GHz
Turbo clock speed 3.8 GHz
Cores Hexa core
Socket type LGA 2011
Is unlocked Yes


Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. AES
  3. SSE
  4. SSE2
  5. SSE4.1
  6. SSE3
  7. Supplemental SSE3
  8. SSE4.2
  9. AVX
  10. SSE4
Supports dynamic frequency scaling Yes

integrated graphics

GPU None

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1600
  2. DDR3-1333
  3. DDR3-1066
  4. DDR3
Channels Quad Channel
Supports ECC No
Maximum bandwidth 51,200 MB/s
Maximum memory size 65,771.52 MB


Architecture x86-64
Threads 12 threads
L2 cache 2 MB
L2 cache per core 0.33 MB/core
L3 cache 12 MB
L3 cache per core 2 MB/core
Manufacture process 32 nm
Transistor count 2,270,000,000
Max CPUs 1
Clock multiplier 32
Voltage range 0.6 - 1.35V
Operating temperature Unknown - 66.8°C


Overclock popularity 598
Overclock review score 4.5
Overclocked clock speed 4.67 GHz
Overclocked clock speed (Water) 4.67 GHz
PassMark (Overclocked) 6,119.5
Overclocked clock speed (Air) 4.67 GHz

power consumption

TDP 130W
Annual home energy cost 56.96 $/year
Annual commercial energy cost 177.83 $/year
Performance per watt 5.5 pt/W
Idle power consumption 81.4W
Peak power consumption 203W
Typical power consumption 172.6W


Architecture DMI 2.0
Transfer rate 5,000 MT/s
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