CPUBoss Review Our evaluation of 4820K vs 3930K among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

Cast your vote Do you agree or disagree with CPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!
VS
Front view of Intel Core i7 3930K

Intel Core i7 3930K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Core i7 4820K

Reasons to consider the
Intel Core i7 4820K

Report a correction
Significantly higher clock speed 3.7 GHz vs 3.2 GHz More than 15% higher clock speed
Much newer manufacturing process 22 nm vs 32 nm 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
Higher turbo clock speed 3.9 GHz vs 3.8 GHz Around 5% higher turbo clock speed
Newer Jul, 2013 vs Nov, 2011 Release date over 1 years later
Much lower annual home energy cost 31.32 $/year vs 56.96 $/year More than 45% lower annual home energy cost
Better performance per watt 7.59 pt/W vs 5.35 pt/W More than 40% better performance per watt
Much lower annual commercial energy cost 113.88 $/year vs 177.83 $/year More than 35% lower annual commercial energy cost
Better performance per dollar 4.31 pt/$ vs 2.38 pt/$ More than 80% better performance per dollar
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Better cinebench r10 32Bit 1-core score 6,911 vs 6,268 More than 10% better cinebench r10 32Bit 1-core score
Front view of Intel Core i7 3930K

Reasons to consider the
Intel Core i7 3930K

Report a correction
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 cores 6 vs 4 2 more cores; run more applications at once
More threads 12 vs 8 4 more threads
Slightly 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
Better geekbench 3 Multi-Core score 18,254 vs 13,311 More than 35% better geekbench 3 Multi-Core score
Better geekbench 2 (32-bit) score 18,902 vs 13,645 Around 40% better geekbench 2 (32-bit) score
Better cinebench r10 32Bit score 34,998 vs 27,033 Around 30% better cinebench r10 32Bit score
Better PassMark (Overclocked) score 6,119.5 vs 5,294.9 More than 15% better PassMark (Overclocked) score
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core

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

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4820K
2,500,000 MB/s
Core i7 3930K
2,430,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

3D Mark 11 (Physics)

Cinebench R10 32-Bit

Cinebench R10 32-Bit (Single Core)

Specifications Full list of technical specs

summary

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

features

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

power consumption

TDP 130W 130W
Annual home energy cost 31.32 $/year 56.96 $/year
Annual commercial energy cost 113.88 $/year 177.83 $/year
Performance per watt 7.59 pt/W 5.35 pt/W
Typical power consumption 105.63W 172.6W

bus

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

details

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

overclocking

Overclocked clock speed 4.62 GHz 4.68 GHz
Overclocked clock speed (Water) 4.71 GHz 4.62 GHz
PassMark (Overclocked) 5,294.9 6,119.5
Overclocked clock speed (Air) 4.62 GHz 4.68 GHz

integrated graphics

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
DDR3
Channels Quad Channel Quad Channel
Supports ECC No No
Maximum bandwidth 59,733.32 MB/s 51,200 MB/s
Maximum memory size 65,536 MB 65,536 MB
Intel Core i7 4820K
Report a correction
Intel Core i7 3930K
Report a correction

Comments

comments powered by Disqus