CPUBoss Review Our evaluation of 3930K vs 4820k

Performance

Benchmark performance using all cores

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

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Overclocking

How much speed can you get out of the processor?

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

Value

Are you paying a premium for performance?

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Overclocking and Value

Winner
Intel Core i7 3930K 

CPUBoss recommends the Intel Core i7 3930K  based on its .

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Intel Core i7 3930K

CPUBoss Winner
Front view of Intel Core i7 3930K

Differences What are the advantages of each

Front view of Intel Core i7 3930K

Reasons to consider the
Intel Core i7 3930K

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More l3 cache 12 MB vs 10 MB 20% more l3 cache; more data can be stored in the l3 cache for quick access later
More l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More threads 12 vs 8 4 more threads
More cores 6 vs 4 2 more cores; run more applications at once
Significantly better geekbench (64-bit) score 20,760 vs 14,448 Around 45% better geekbench (64-bit) score
Better PassMark score 12,084 vs 9,866 More than 20% better PassMark score
Better PassMark (Overclocked) score 6,119.5 vs 5,294.9 More than 15% better PassMark (Overclocked) score
Slightly more l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Slightly better overclocked clock speed (Water) 4.93 GHz vs 4.67 GHz More than 5% better overclocked clock speed (Water)
Front view of Intel Core I7 4820k

Reasons to consider the
Intel Core I7 4820k

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Higher clock speed 3.7 GHz vs 3.2 GHz More than 15% higher clock speed
Newer manufacturing process 22 nms vs 32 nms A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 105.63W vs 172.6W Around 40% lower typical power consumption
Significantly better performance per dollar 5.15 pt/$ vs 2.16 pt/$ Around 2.5x better performance per dollar
Significantly better performance per watt 13.16 pt/W vs 6.06 pt/W Around 2.2x better performance per watt
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Much lower annual home energy cost 31.32 $/year vs 56.96 $/year More than 45% lower annual home energy cost
Marginally newer Jul, 2013 vs Nov, 2011 Release date over 1 years later
Much lower annual commercial energy cost 113.88 $/year vs 177.83 $/year More than 35% lower annual commercial energy cost

Benchmarks Real world tests of Core i7 3930K vs I7 4820k

GeekBench (32-bit)

GeekBench (64-bit)

GeekBench

3D Mark 11 (Physics)

Core i7 3930K Core I7 4820k @ community.futuremark.com

Passmark

Core i7 3930K Core I7 4820k @ cpubenchmark.net

Passmark (Single Core)

Specifications Full list of technical specs

summary

Core i7 3930K  vs
I7 4820k 
Clock speed 3.2 GHz 3.7 GHz
Turbo clock speed 3.8 GHz 3.9 GHz
Cores Hexa core Quad core
Is unlocked Yes Yes
Is hyperthreaded Yes Yes

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has vitualization support Yes Yes
Instruction-set-extensions
MMX
SSE
SSE4.2
AVX
SSE3
SSE2
Supplemental SSE3
SSE4.1
SSE4
AES
Supports dynamic frequency scaling Yes Yes

gpu

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3-1066
Channels Quad Channel Quad Channel
Supports ECC No No
Maximum bandwidth 51,200 MB/s 59,733.32 MB/s
Maximum memory size 65,536 MB 65,536 MB

details

Core i7 3930K  vs
I7 4820k 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 10 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 32 nms 22 nms
Max CPUs 1 1
Operating temperature Unknown - 66.8°C Unknown - 66.8°C

overclocking

Overclocked clock speed 4.73 GHz 4.6 GHz
Overclocked clock speed (Water) 4.93 GHz 4.67 GHz
PassMark (Overclocked) 6,119.5 5,294.9
Overclocked clock speed (Air) 4.73 GHz 4.6 GHz

power consumption

TDP 130W 130W
Annual home energy cost 56.96 $/year 31.32 $/year
Annual commercial energy cost 177.83 $/year 113.88 $/year
Performance per watt 6.06 pt/W 13.16 pt/W
Typical power consumption 172.6W 105.63W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Core i7 3930K
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Intel Core I7 4820k
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