Intel Pentium D 820 

Released April, 2005
  • 2.8 GHz
  • Dual core
5 Out of 10

But for most applications, most of the time, it does the job.
by Tech Radar (Feb, 2007)
And even the mediocre gaming frame rates can be remedied by cranking the clock well beyond 3GHz.
by Tech Radar (Feb, 2007)

CPUBoss Review Our evaluation of the Intel Pentium D 820 among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

Pentium D 820
3.9
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Pentium D 820
4.4
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Pentium D 820
0.0
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Pentium D 820
0.0
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Pentium D 820
5.3
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Pentium D 820
6.2
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

5

CPUBoss Score

Combination of all six facets

Pentium D 820
5.0

Benchmarks Real world tests of the Intel Pentium D 820

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Pentium D 820
1,378
Core i5 3570K
10,311

GeekBench 3 (Single core) Data courtesy Primate Labs

Pentium D 820
788

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium D 820
100,200 MB/s
Core i5 3570K
2,650,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Pentium D 820
1,268
Core i5 3570K
10,832

GeekBench (64-bit) Data courtesy Primate Labs

Pentium D 820
1,577
Core i5 3570K
11,824

GeekBench

Pentium D 820
2,414
Core i5 3570K
15,009

Reviews Word on the street for the Intel Pentium D 820


7.0
Indeed, our only real concern is dodgy gaming performance when running at the stock 2.8GHz clockspeed.

Specifications Full list of technical specs

summary

Clock speed 2.8 GHz
Cores Dual core
Socket type LGA 775

features

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

integrated graphics

GPU None

bus

Architecture FSB
Clock speed 800 MHz

details

Architecture x86-64
Threads 2 threads
L2 cache 2 MB
L2 cache per core 1 MB/core
Manufacture process 90 nm
Transistor count 230,000,000
Max CPUs 1
Clock multiplier 14
Voltage range 1.2 - 1.4V
Operating temperature Unknown - 64.1°C

overclocking

Overclock popularity 11
Overclocked clock speed 3.53 GHz
Overclocked clock speed (Water) 4.25 GHz
PassMark (Overclocked) 908.7
Overclocked clock speed (Air) 3.53 GHz

power consumption

TDP 95W
Annual home energy cost 22.89 $/year
Annual commercial energy cost 83.22 $/year
Performance per watt 1 pt/W
Typical power consumption 77.19W

memory controller

Memory controller Built-in
Supports ECC No
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