Celeron 420 vs Pentium D 820

VS

Aggregate performance score

Pentium D 820
2005
2 cores / 2 threads, 95 Watt
0.31
+107%
Celeron 420
2007
1 core / 1 thread, 35 Watt
0.15

Pentium D 820 outperforms Celeron 420 by a whopping 107% based on our aggregate benchmark results.

Primary details

Comparing Pentium D 820 and Celeron 420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking31013323
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesPentium Dno data
Power efficiency0.310.41
Architecture codenameSmithfield (2005)Conroe-L (2007−2008)
Release dateMay 2005 (19 years ago)June 2007 (17 years ago)
Launch price (MSRP)no data$23

Detailed specifications

Pentium D 820 and Celeron 420 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)1 (Single-Core)
Threads21
Base clock speed2.8 GHz1.6 GHz
Boost clock speed2.8 GHz1.6 GHz
Bus rate800 MHzno data
L1 cache28 KB64 KB
L2 cache2 MB512 KB
L3 cache0 KB0 KB
Chip lithography90 nm65 nm
Die size206 mm277 mm2
Maximum core temperature64 °Cno data
Maximum case temperature (TCase)no data60 °C
Number of transistors169 million105 million
64 bit support++
Windows 11 compatibility--
VID voltage range1.2V-1.4V1V-1.3375V

Compatibility

Information on Pentium D 820 and Celeron 420 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration21
SocketPLGA775LGA775
Power consumption (TDP)95 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 820 and Celeron 420. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)--
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring-+
Demand Based Switching--
PAE32 Bitno data
FSB parity--

Security technologies

Pentium D 820 and Celeron 420 technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 820 and Celeron 420 are enumerated here.

VT-d--
VT-x--

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 820 and Celeron 420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR1, DDR2, DDR3

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pentium D 820 0.31
+107%
Celeron 420 0.15

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Pentium D 820 499
+112%
Celeron 420 235

Gaming performance

Pros & cons summary


Performance score 0.31 0.15
Physical cores 2 1
Threads 2 1
Chip lithography 90 nm 65 nm
Power consumption (TDP) 95 Watt 35 Watt

Pentium D 820 has a 106.7% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Celeron 420, on the other hand, has a 38.5% more advanced lithography process, and 171.4% lower power consumption.

The Pentium D 820 is our recommended choice as it beats the Celeron 420 in performance tests.


Should you still have questions on choice between Pentium D 820 and Celeron 420, ask them in Comments section, and we shall answer.

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Intel Pentium D 820
Pentium D 820
Intel Celeron 420
Celeron 420

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.1 172 votes

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2.9 170 votes

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Questions & comments

Here you can ask a question about Pentium D 820 or Celeron 420, agree or disagree with our judgements, or report an error or mismatch.