Intel Celeron 847 advantages
- On-chip Virtualization technology enhances performance of virtualized programs.
- SSSE3, SSE4.1 and SSE4.2 instructions are enabled on this processor.
- The Intel Celeron 847 has integrated HD (Sandy Bridge) GPU. While this graphics is not fast enough to run latest games with all settings on, it can be used for casual gaming and 3D apps.
- The 847 is 82% more energy efficient than the Pentium D 820.
Intel Pentium D 820 advantages
- The Intel Pentium D 820 comes with higher operating frequency than the Celeron 847 CPU.
- The Intel Pentium D 820 uses Socket 775, and can be removed from it with ease. This allows easy processor upgrade or downgrade when desired.
847 vs 820 specifications comparison
The graphs below compare the most important features of the Intel 820 and Intel 847 processors. These characteristics, as well as an IPC (instructions per cycle) number, determine how well a CPU performs. Darker area on the "On-chip cache" graph is for the On-chip L2 cache. Lighter area is for the L3 cache cache. Although the L3 cache cache is usually larger than the On-chip L2 cache, it is always slower.
The number of cores / threads
Higher is better
Higher is better
On-chip L2 + L3 cache
Higher is better
Thermal Design Power
Lower is better
- Intel Celeron 847 - Intel Pentium D 820
Detailed side by side comparison of Intel 847 vs 820 specs can be found in the "Specifications" tab.
Pros and Cons summary
|Celeron 847|| ||Pentium D 820|
Supports SSE4.1 / SSE4.2 instructions,
Integrates HD (Sandy Bridge) GPU,
Significantly lower power consumption
Base frequency is much higher,
The microprocessor is upgreadable
Runs at lower base frequency,
Not possible to upgrade ot replace
Does not support some instructions,
Does not have on-chip graphics,
Needs considerably more power
Similar CPUs use the same socket and architecture as Celeron 847 and Intel 820, but their performance and other characteristics are slightly different.
Please visit Intel Celeron 847 and Intel Pentium D 820 pages for more complete specifications of both microprocessors.
| ||Intel Celeron 847||Intel Pentium D 820|
|Family||Mobile Celeron Dual-Core||Pentium D|
|CPU part number||AV8062700852800||HH80551PG0722MN|
|Box part number|| ||BX80551PG2800FN|
|Introduction date||June 19, 2011||May 26, 2005|
|Current official price||$134 (as of Jun 2013)|| |
|Core name||Sandy Bridge||Smithfield|
|Data width (bits)||64|
|Bus speed (MHz)|| ||800|
|L1 cache||64 KB (code) / 64 KB (data)||32 KB (data)|
|L2 cache (KB)||512||2048|
|L3 cache (KB)||2048|| |
|Max temperature (°C)||100||64.1|
|Max power dissipation (Watt)|| ||127|
|Core voltage (V)|| ||1.2 - 1.4|
|Instruction set extensions|
|AMD64 / EM64T 64-bit technology||+|
|SSSE3 / Supplemental SSE3||+||-|
|PowerNow! / Enhanced SpeedStep||+||-|
|Virus Protection / Execute Disable bit||+|
|GPU Type||HD (Sandy Bridge)||None|
|Integrated Memory Controller(s)|
|The number of controllers||1||0|
Rows with different specifications or features are highlighted.
For detailed specifications of "Intel Celeron 847" or "Intel Pentium D 820" parts please click on the links in the table header.
Compare Intel Celeron 847 with...
Compare Intel Pentium D 820 with...
Note: To see differences with any CPU, type in
any combination of the following into the "Any CPU" field: manufacturer name,
full or partial family name, model number, part number, core name,
socket name, operating frequency, bus speed (must have FSB suffix),
and the last level cache. Here are some valid searches:
Intel Celeron 2 GHz
Pentium 4 800FSB
AMD 3.3GHz 8MB
Please post all comments on the Intel Celeron 847 or Intel Pentium D 820 pages