[nextpage title=”Introduction”]

Those who have been following the processor market for some time know the rivalry between Intel and AMD, to see who develops the fastest processor. For you to have a clearer idea of how this competition works, first you need to understand how the processor market is divided. The market was divided in three segments:

  • Low-end: Destined to beginners or users who don’t need computing power.
  • Mid-range: Destined to enthusiast users or those who need computing power.
  • High-end: Destined to network servers.

This article is about the leading parts in this fight between Intel and AMD in the low-end market.

Intel’s representative in low-end market is Celeron D, while Sempron is AMD’s. Both Celeron D and Sempron are in fact versions of the high-end Intel and AMD processors with reduced features. Celeron D is a “light” version of Pentium 4, and Sempron is a “cut” version of Athlon XP or Athlon 64.

[nextpage title=”Celeron D”]

Celeron D is based on Pentium 4 with Prescott core, uses 90 nanometres technology, 16 KB of L1 cache, 256 KB of L2 cache, runs externally at 533 MHz (133 MHz transferring four data per clock tick), support to SSE3 multimedia instructions and Execute Disable technology, FC-PGA2 package, 478- or 775-pin socket, and can be found with clocks from 2.53 GHz to 3.2 GHz.

On the chart below, we listed the Celeron D models available.

Processor Internal Clock External Clock L2 Cache Socket Hyper-Threading
350 3.2 GHz 533 MHz 256 KB 478 or 775 No
345 3.06 GHz 533 MHz 256 KB 478 or 775 No
340 2.93 GHz 533 MHz 256 KB 478 or 775 No
335 2.80 GHz 533 MHz 256 KB 478 or 775 No
330 2.66 GHz 533 MHz 256 KB 478 or 775 No
325 2.53 GHz 533 MHz 256 KB 478 or 775 No

For more information on Celeron processors, read our tutorial All Celeron Models.

[nextpage title=”Sempron”]

Sempron can be found in 462- or 754-pin socket. The socket 462 Sempron models with clock up to 2 GHz (Sempron 2800+) have 0.13 mm technology, 128 KB of L1 cache, 256 KB of L2 cache, run externally at 333 MHz (166 MHz transferring two data per clock tick), support to SSE and 3DNow! Multimedia instructions, can be found with clocks from 1.50 GHz to 2 GHz, and are based on Athlon XP’s Thoroughbred-B and Thorton cores.

Sempron 3000+ is based on the Barton core and has 512 KB of L2 cache.

On the chart below, we listed the socket 462 Sempron models available.

Processor Internal Clock External Clock L1 Cache L2 Cache Socket
Sempron 2200+ 1.50 GHz 333 MHz 128 KB 256 KB 462
Sempron 2300+ 1.58 GHz 333 MHz 128 KB 256 KB 462
Sempron 2400+ 1.67 GHz 333 MHz 128 KB 256 KB 462
Sempron 2500+ 1.70 GHz 333 MHz 128 KB 256 KB 462
Sempron 2600+ 1.83 GHz 333 MHz 128 KB 256 KB 462
Sempron 2800+ 2 GHz 333 MHz 128 KB 256 KB 462
Sempron 3000+ 2 GHz 333 MHz 128 KB 512 KB 462

The socket 754 Sempron is a version of the Athlon 64 with less L2 cache memory. Sempron processors can be based on the following cores: Paris and Palermo. The Paris core has 0.13mm technology, 128 KB of L1 cache, 256 KB of L2 cache, runs externally at 800 MHz through the HyperTransport bus, supports 3DNow! and SSE2 instructions and Cool’n’Quiet and NX technologies. The Palermo core has 90 nanometres technology, 128 KB of L1 cache, 128 KB or 256 KB of L2 cache, runs externally at 800 MHz through the HyperTransport bus, supports 3DNow! and SSE3 instructions and Cool’n’Quiet and NX technologies, and 64-bit instructions (AMD64).

On the chart below, we listed the socket 754 Sempron models available.

Processor Core Internal Clock HyperTransport L1 Cache L2 Cache Socket
Sempron 2500+ Palermo 1.4 GHz 800 MHz 128 KB 128 KB 754
Sempron 2600+ Palermo 1.6 GHz 800 MHz 128 KB 128 KB 754
Sempron 2800+ Palermo 1.6 GHz 800 MHz 128 KB 256 KB 754
Sempron 3000+ Palermo 1.8 GHz 800 MHz 128 KB 128 KB 754
Sempron 3100+ Paris 1.8 GHz 800 MHz 128 KB 256 KB 754
Sempron 3100+ Palermo 1.8 GHz 800 MHz 128 KB 256 KB 754
Sempron 3300+ Palermo 2 GHz 800 MHz 128 KB 128 KB 754
Sempron 3400+ Palermo 2 GHz 800 MHz 128 KB 256 KB 754

Note: The first socket 754 Sempron had the 64 bits extensions deactivated, but from July 2005 on AMD has been launching socket 754 Sempron models with the 64-bit instructions activated. The socket 754 Sempron models listed on the chart below can be found with the 64-bit instructions either deactivated or activated. The models with 64-bit extensions enabled have the letters "BX" as the two last letters printed on the CPU package.

[nextpage title=”Comparative Chart”]

Comparative chart between the Celeron D and Sempron.

Characteristic

Celeron D

Sempron

Socket 478 or 775 462 754
Based on Pentium 4 Athlon XP Athlon 64
Highest Operating Frequency 3.2 GHz 2 GHz 2 GHz
L1 Cache 16 KB 128 KB 128 KB
L2 Cache 256 KB 256 KB or 512 KB 128 KB or 256 KB
External Bus 533 MHz 333 MHz 800 MHz (chipset) and 400 MHz (memory)
Technology 90 nm 130 nm 90 nm