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Processors

AMD Sempron 3400+   [Computer Shopper]
COMPANY: AMD PRICE: £62inc VAT  
RATING: ISSUE: 215  DATE: Nov 05
   

Core: Palermo

Frequency: 1.8GHz

Socket: 754

Process: 90nm

Cores: One

Instructions: MMX, 3DNow!, SSE, SSE2, SSE3, x86-64

Multiplier: 9x

External bus: 200MHz

Effective FSB speed: 2x 800MHz (HyperTransport)

Level 1 cache: 128KB

Level 2 cache: 128KB

AMD introduced the Sempron range of budget processors in 2004. We tested the Sempron 2800+, 3000+ and 3400+, which all use Socket 754. These are

 
 
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based on the Palermo core. Palermo uses the same 90nm process as the Athlon 64 Venice and supports the latest SSE3 instruction set.

The first Socket 754 Semprons didn't support the x86-64 64-bit instruction set, so they were incompatible with the 64-bit version of Windows XP Professional. However, in June 2005, AMD decided to sell Sempron processors with 64-bit extensions. Semprons may not have the raw power of the Athlon 64 processors, but they provide 64-bit computing at a low price.

Our test results showed that a system based on a Sempron processor is fine for normal office tasks, but struggles with advanced applications such as video editing and gaming. Even the fastest Sempron in the group, the £95 3400+, couldn't match Intel's £54 Celeron D 330 in our video-encoding test. It scored 73, some way behind the Celeron's 86.

We managed to overclock the 3400+ to 2.3GHz, however, where it managed scores of 4,244 in PCMark04 and 103 in our video-encoding test. This was faster than the Athlon 64 3500+, which costs £85 more.

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