CPUBoss Review Our evaluation of 820 vs 420 among all CPUs

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

Sky Diver and Cloud Gate

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?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, 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

Differences What are the advantages of each

Front view of Intel Pentium D 820

Reasons to consider the
Intel Pentium D 820

Report a correction
Much better geekbench 3 AES single core score 100,200 MB/s vs 66,700 MB/s More than 50% better geekbench 3 AES single core score
Significantly higher clock speed 2.8 GHz vs 1.6 GHz Around 75% higher clock speed
Significantly 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
Much better overclocked clock speed (Air) 3.52 GHz vs 2.02 GHz Around 75% better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
Better geekbench 3 Multi-Core score 1,378 vs 808 More than 70% better geekbench 3 Multi-Core score
Slightly higher Maximum operating temperature 64.1 °C vs 60.4 °C More than 5% higher Maximum operating temperature
Significantly better overclocked clock speed (Water) 4.25 GHz vs 3.38 GHz More than 25% better overclocked clock speed (Water)
Front view of Intel Celeron M 420

Reasons to consider the
Intel Celeron M 420

Report a correction
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Significantly better performance per dollar 1.57 pt/$ vs 1.2 pt/$ More than 30% better performance per dollar
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
Newer Apr, 2007 vs Apr, 2005 Release date over 2 years later
Slightly better performance per watt 1.57 pt/W vs 0.94 pt/W Around 70% better performance per watt

Benchmarks Real world tests of Pentium D 820 vs Celeron M 420

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

Pentium D 820
100,200 MB/s
Celeron M 420
66,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

Specifications Full list of technical specs

summary

Pentium D 820  vs
Celeron M 420 
Clock speed 2.8 GHz 1.6 GHz
Cores Dual core Single core
Socket type
LGA 775
478

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support No No
Instruction set extensions
MMX
SSE
SSE2
SSE3
Supports dynamic frequency scaling No No

power consumption

TDP 95W 35W
Annual home energy cost 22.89 $/year 8.43 $/year
Annual commercial energy cost 83.22 $/year 30.66 $/year
Performance per watt 0.94 pt/W 1.57 pt/W
Typical power consumption 77.19W 28.44W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 800 MHz

details

Pentium D 820  vs
Celeron M 420 
Architecture x86-64 x86-64
Threads 2 1
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 65 nm
Transistor count 230,000,000 105,000,000
Max CPUs 1 1
Clock multiplier 14 8
Voltage range 1.2 - 1.4V 1 - 1.34V
Operating temperature Unknown - 64.1°C Unknown - 60.4°C

overclocking

Overclocked clock speed 3.52 GHz 2.02 GHz
Overclocked clock speed (Water) 4.25 GHz 3.38 GHz
PassMark (Overclocked) 908.7 1,365.1
Overclocked clock speed (Air) 3.52 GHz 2.02 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
Intel Pentium D 820
Report a correction
Intel Celeron M 420
Report a correction

Comments

comments powered by Disqus