Intel Celeron D Processor by Stephen Bucaro

The Celeron processor is a budget processor offering moderate performance at an affordable price. This processor is suitable for use in notebook and desktop computers running home-office applications and providing access to the Internet. It is not be recommended for use in a high performance game machine or a heavily accessed web server.

The Celeron D processor, released in December 2005, is based on the Prescott core. It runs at clock speeds up to 3.33 GHz, has a 533MHz Front Side Bus Speed, a 16kb L1 cache, and an integrated 256K L2 cache. Celeron D models 347 and higher use the 65nm Cedar Mill core and have a 12KB + 16KB (Data + Instructions) L1 Cache and a 512KB L2 cache.

Pins on bottom of processor - Contact pads on bottom of processor

This processor uses either the socket 478 or the LGA775 Socket. The two socket types are not interchangeable because the newer 775-pin Land Grid Array has no pins on the processor. Gold contact pads provide the connection between the processor and the socket on the motherboard.

Some Celeron D models feature Intel's Extended Memory 64 Technology which allows them to access larger amounts of memory and support 64-bit extended operating systems. Some models, including those with J in their model number, feature the Execute Disable Bit (XDB), which prevents viruses from exploiting buffer overrun vulnerabilities.

Celeron D Processors

Model	
Process
L2 Cache
Clock Speed	
EM64T	
XDB	

310	
90 nm	
256 KB	
2.13 GHz	
  
 
315	
90 nm	
256 KB	
2.26 GHz	
 	
 	
320	
90 nm	
256 KB	
2.40 GHz	
 	
 	
325	
90 nm	
256 KB	
2.53 GHz	
 	
 	
325J	
90 nm	
256 KB	
2.53 GHz	
 	
X	
326	
90 nm	
256 KB	
2.53 GHz	
X	
X	
330	
90 nm	
256 KB	
2.66 GHz	
 	
 	
330J	
90 nm	
256 KB	
2.66 GHz	
 	
X	
331	
90 nm	
256 KB	
2.66 GHz	
X	
X	
335	
90 nm	
256 KB	
2.80 GHz	
 	
 	
335J	
90 nm	
256 KB	
2.80 GHz	
 	
X	
336	
90 nm	
256 KB	
2.80 GHz	
X	
X	
340	
90 nm	
256 KB	
2.93 GHz	
 	
 	
340J	
90 nm	
256 KB	
2.93 GHz	
 	
X	
341	
90 nm	
256 KB	
2.93 GHz	
X	
X	
345	
90 nm	
256 KB	
3.06 GHz	
 	
 	
345J	
90 nm	
256 KB	
3.06 GHz	
 	
X	
346	
90 nm	
256 KB	
3.06 GHz	
X	
X	
347	
65 nm	
512 KB	
3.06 GHz	
X	
X	
350	
90 nm	
256 KB	
3.20 GHz	
 	
 	
351	
90 nm	
256 KB	
3.20 GHz	
X	
X	
352	
65 nm	
512 KB	
3.20 GHz	
X	
X	
355	
90 nm	
256 KB	
3.33 GHz	
X	
X	
356	
65 nm	
512 KB	
3.33 GHz	
X	
X	

• Don't confuse the Celeron D with processors without the "D", which are based on the Northwood core and have only 8kb of L1 cache and a 128 KB L2 cache.

• Note that, unlike the Pentium D, the Celeron D is not a dual core processor.

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