CPUBoss Review Our evaluation of 4770K vs 4820k


Benchmark performance using all cores

Cinebench R10 32-bit, Passmark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

Cinebench R10 32-bit (1-core) and Passmark (Single Core)


How much speed can you get out of the processor?

Passmark (Overclocked), Unlocked, Maximum Overclocked Clock Speed (Air) and 1 more


Are you paying a premium for performance?

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Overclocking and Value

Intel Core i7 4770K 

CPUBoss recommends the Intel Core i7 4770K  based on its .

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Intel Core i7 4770K

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Front view of Intel Core i7 4770K

Differences What are the advantages of each

Front view of Intel Core i7 4770K

Reasons to consider the
Intel Core i7 4770K

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly lower typical power consumption 68.25W vs 105.63W More than 35% lower typical power consumption
Higher Maximum Operating Temperature 72.72 °C vs 66.8 °C Around 10% higher Maximum Operating Temperature
Better PassMark (Overclocked) score 6,694.4 vs 5,294.9 More than 25% better PassMark (Overclocked) score
Better PassMark (Single core) score 2,165 vs 2,010 Around 10% better PassMark (Single core) score
Better performance per watt 12.72 pt/W vs 10.85 pt/W More than 15% better performance per watt
Better cinebench r10 32Bit 1-core score 7,718 vs 6,911 More than 10% better cinebench r10 32Bit 1-core score
Significantly lower annual commercial energy cost 73.58 $/year vs 113.88 $/year More than 35% lower annual commercial energy cost
Significantly lower annual home energy cost 20.24 $/year vs 31.32 $/year More than 35% lower annual home energy cost
Slightly better cinebench r10 32Bit score 30,095 vs 27,033 More than 10% better cinebench r10 32Bit score
Front view of Intel Core I7 4820k

Reasons to consider the
Intel Core I7 4820k

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More l3 cache 10 MB vs 8 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Higher clock speed 3.7 GHz vs 3.5 GHz More than 5% higher clock speed
Supports more RAM 65,536 MB vs 32,768 MB Supports 2x more RAM
Significantly more l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Better 3DMark11 physics score 11,580 vs 9,140 More than 25% better 3DMark11 physics score
Better performance per dollar 5.64 pt/$ vs 4.31 pt/$ More than 30% better performance per dollar

Benchmarks Real world tests of Core i7 4770K vs I7 4820k

GeekBench (32-bit)

3D Mark 11 (Physics)

Core i7 4770K Core I7 4820k @ community.futuremark.com

Cinebench R10 32-Bit

Core i7 4770K Core I7 4820k @ anandtech.com

Cinebench R10 32-Bit (Single Core)

Core i7 4770K Core I7 4820k @ anandtech.com


Core i7 4770K Core I7 4820k @ cpubenchmark.net

Passmark (Single Core)

Specifications Full list of technical specs


Core i7 4770K  vs
I7 4820k 
Clock speed 3.5 GHz 3.7 GHz
Turbo clock speed 3.9 GHz 3.9 GHz
Cores Quad core Quad core
Is unlocked Yes Yes
Is hyperthreaded Yes Yes


Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 84W 130W
Annual home energy cost 20.24 $/year 31.32 $/year
Annual commercial energy cost 73.58 $/year 113.88 $/year
Performance per watt 12.72 pt/W 10.85 pt/W
Typical power consumption 68.25W 105.63W


Architecture DMI 2.0 DMI 2.0
Number of links 0 1
Transfer rate 5,000 MT/s 5,000 MT/s


Core i7 4770K  vs
I7 4820k 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 10 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 72.72°C Unknown - 66.8°C


Overclocked clock speed 4.47 GHz 4.63 GHz
Overclocked clock speed (Water) 4.51 GHz 4.7 GHz
PassMark (Overclocked) 6,694.4 5,294.9
Overclocked clock speed (Air) 4.47 GHz 4.63 GHz

integrated graphics

Label Intel® HD Graphics 4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,250 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
Channels Dual Channel Quad Channel
Supports ECC No No
Maximum bandwidth 25,600 MB/s 59,733.32 MB/s
Maximum memory size 32,768 MB 65,536 MB
Intel Core i7 4770K
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Intel Core I7 4820k
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Showing 24 comments.
4820K is better if going with multi GPU setup, 4770K is better with single GPU setup. But honestly, when I compared a 4820K w/ 2 R9 290's vs 4770K w/ 2 R9 290's there's almost no difference in performance. I'd recommend going with X79 if you're going for 3 - 4 GPU's setup. Anyways.. both are great CPU's and money is well spent going both ways.
4820k is indeed ivybridge extreme (ivy-e) and 4770k is haswell. same transistor size, different architecture. I myself still have an i7960 and im waiting for the new confirmed x99 platform with haswell-E. then i may consider upgrading... ill have to evaluate what haswell-E is really capable of, and if its worth it. I may just decide to take advantage of the price drop of x79 or z97 systems and upgrade to those then. we shall see. I will probably not need the 8 cores of the new intel chips but new technology is always tempting. just my 2 cents if your gaming and not into OC, id say 4670k is your bet. id personally go for 4790k but thats me ;P
Yes. At stock speeds, the 4770 is both faster and cheaper as a platform. Unless you need one of the edge case scenarios (triple video cards, 64 GB of RAM, or overclocking), the 4770 is the better choice.
If sticking with stock speed, isn't 4770 performance/cost wiser?
It's not lol...It's not the same cpu lol..end of story,come back when u compare the newer 4820k..ty:)
No clue; I don't know what their testing methodology is here. Every other review I have read shows the 4820k quickly outpacing the 4770k when overclocked, mostly because as you ramp up in speed heat issues quickly cause gating issues on the 4770k while the 4820k is able to both deal with heat more effecively, and dissipate it better.
So why 4820k got less score in overcloaking???
4820k overclocks better and runs at lower temps + access to socket 2011 chipset
it's based on sandy bridge architecture
The 40-lane vs 16-lane PCIe advantage of the LGA2011 socket that the 4820K has is important to someone like me who's trying to put together a GPU rendering node with 4 GPUs. Seems like that information (along with the socket type) should be included in the tech specs on this page.
Get the 4820k. If this information (as well as other info I've gathered) is true, then the 4820k will help you when gaming.
Why would a site called CPU Boss, which specializes in reviewing and analyzing the finer points of processors, be listing the 4820 processor as having a Haswell architecture? I'm not even qualified to write articles on processors and even I know that it's an Ivy Bridge CPU, not a Haswell. The 4770 is a Haswell,processor but not the other one. Seriously that is a pretty important fact to get wrong. And BTW that fact that the 4820 K is based on the older Ivy Bridge architecture explains why the 4770 beats it by a little bit in single thread clock for clock performance. Get your facts straight dude.
Depends. Performance wise out of the box the 4770 is faster, but not by much. Overclocked, the 4820 gives more performance. The 4820 is more power hungry, and runs hotter, so you need a better cooler, probably going as far as needing a closed loop water cooler at minimum if you are overclocking. The motherboards are also more expensive, and you need 4 sticks of RAM to fill a bank. Bottom line, the 4820 IS a better CPU, but it's about $100-200 more for the platform even though the CPUs cost about the same. If you are being price conscious, which by your choice of GPU seems likely, I would agree with others here - get an i5 4670 and use the $100 difference to upgrade to a GTX 770. GPU is more important for gaming than CPU at this point, so if you have to choose, choose more graphics power.
4570k for 1 graphic card (GTX760-780) or 2-way sli (760) 4820k for 2-way(GTX 770-780ti), 3-way(GTX 760-770)
i just bought two evga superclocked 770s.. im trying to decide on which chip i should buy the 4770k or the 4820k.. im a gamer.. but i like my stuff to be sidity, bourgeois smooth.. my current build is. phenom II x4 965, gtx 660. and i quit playing cod ghost.. bc it didnt run smooth..
If you want gaming get a 770 instead with an i5. Gaming is great on the 4820K with 760 but if gaming is your sole purpose the cheaper i5/mobo and better more expensive GPU you'll get better value if you have a certain price point you need to stick at. I have a 4820K and 760 and using it for gaming but I have virtual machines also running I use for work and wanted the extra memory.
How did they only get 4.54 GHz on water for the 4280K. I have had mine at 4.63 and 4.7 and the highest I have seen is 42C under mark 11 test. No mention of Quad channel memory either. I should try to run passmark if they have a free version and post my score here. I think the 4280K is even a little cheaper than the 4770K now or about the same.
Hey there, I reccomend going with something like a 4670k instead of a 4770k. You will be paying more for extra power you dont really need.
i want to buy a cpu 4770k or 4820k which is better for gaming?(with gtx 760 graphic card)?
Thank you for that info.
The big difference between the two chips is the platform. The 4770K sits on a completely modern chipset with lots of native current-gen I/O (SATA6, USB3, etc), while the 4820k lives with a two-year old chipset that has limited numbers of these same items. Conversely, the 4820k platform is far more robust; it has 2.5x as many PCI Express lanes and twice the memory capacity. Mainboard manufacturers usually add extra onboard controllers to make up for the lack of connectivity on these boards as well - resulting in an equal footing, at a higher price. The other differentiating point is how the heat spreader is attached to the CPU die. On the 4770k, it is simply glued, making overclocking to high speeds difficult due to lack of direct thermal contact to cooling. The 4820K is soldered to its heat spreader, allowing for better cooling and in theory higher overclocks. Benchmarks on various sites have shown that at stock speeds the 4770K is slightly faster than the 4820k, but when overclocked with a closed loop water cooler, the reverse becomes true. Bottom line, if you are going to tweak your system, the 4820k MIGHT be a better fit for you. If you plan on sticking with stock speeds, the 4770K is a better fit.
I am pretty sure that the 4820k isn't haswell architecture. Isnt the 4820k part of the extreme series of the Ivy Bridge architecture?
The 4820 have a four channel memory suport, and this is a ruge diference...
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