AMD CPU difference between 2?

AMD Athlon 64 and AMD Sempron 64 processor

His so-called AMD Athlon and where is AMD Sempron differences from?

*The Athlon 64 is an eighth-generation, AMD64 architecture microprocessor produced by AMD, released on September 23, 2003[1]. It is the third processor to bear the name "Athlon", and the immediate successor to the Athlon XP[2]. The second processor (after the Opteron) to implement AMD64 architecture and the first 64-bit processor targeted at the average consumer[3], it is AMD's primary consumer microprocessor, and competes primarily with Intel's Pentium 4, especially the "Prescott" and "Cedar Mill" core revisions. It is AMD's first K8, eighth-generation processor core for desktop and mobile computers[4]. Despite being natively 64-bit, the AMD64 architecture is backward-compatible with 32-bit x86 instructions[5]. Athlon 64s have been produced for Socket 754, Socket 939, Socket 940 and Socket AM2.


*Sempron has been the marketing name used by AMD for several different entry level desktop CPUs, using several different technologies and CPU socket formats.

The Sempron replaced the AMD Duron processor and competes against Intel's Celeron D processor.

AMD coined the name from the Latin semper, which means "always, everyday", to denote that the Sempron was the right processor for everyday computing .
*AMD Sempron™ Processor Overview
The AMD Sempron™ processor performs at the top of its class when running the home and business applications most. The AMD Sempron™ processor’s full-featured capabilities can include AMD64 Technology, HyperTransport™ technology, up to 256KB total high-performance cache, One 16-bit/16-bit link @ up to 1600MHz full duplex system bus technology, and an integrated DDR memory controller.

The AMD Sempron™ processor provides the productivity enhancing performance you need for your everyday applications. It runs over 60,000 of the world’s most popular applications, so you can enjoy solid performance. With 35 years of design and manufacturing experience and shipments of more than 240 million PC processors, you can count on AMD to provide reliable solutions for your home or business.
you see, intel pentium 4 is much better than intel pentium 2.
AMD Athlons are top of the line, essentially AMD Opterons less multiple connectivity. Huge caches. AMD FX are not frequency locked.

AMD Semprons are second tier - smaller caches, fewer transistors, slower chips.

You fit your hardware to your tasks and budget. Word processing and Web browsing are not CPU-intensive. Gaming, serious graphics, source code compiling, heavy math... need the clout.

Except for video conversion, AMD vs. Pentium will have AMD running 40% more throughput at the same *class* of chip (NOT same frequency. Frequency is irrelevant). Linux vs. Windows for the same source code will have Linux running 40% more throughput (e.g., Knoppix LIVE! DvD boot). AMD + Linux will run **twice** the throughput of Wintel for heavy math crunching.

Uncle Al has a math+physics crunch that runs 3-5 weeks a shot. It is running right now in an AMD FX55 booted Knoppix 5.1.1. 99% CPU continuous. CPU is at 52 C. Not bad.
Sempron is the name AMD gives to lower end chips. You had Semperon versions of the old Athlon, and now you have Semperon versions of the Athlon64.

Semprons have less LV2 cache.

Modern CPU's can process instructions and data faster than instructions can be fed from memory. So the CPUs have caches. Typically they will have level 1 cache (small but fast), and level 2 cache (larger by slower, still faster then going to memory). Sometimes they have level 3, or even more. If the required data or instructions are in the caches they can feed the data to the CPU faster then it can be fetched from memory.

Athlon 64s and current Semprons both have 128 KB of level one cache (64KB for data, and 64KB for instructions). Athlon 64s have 512 KB or 1024 KB of level two cache while current Semprons have 128K or 256K of level two cache.

The answers post by the user, for information only, does not guarantee the right.

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