X-bits labs heeft een Athlon 64 2800+ met DDR400 mogen testen, werkend aan 1,6GHz.
AMD Athlon 64 aka ClawHammer is exactly Intel’s biggest cause for concern
* Athlon 64 features better branch prediction algorithms and bigger TLB, which will make Athlon 64 run faster than Athlon XP working at the same clock frequency.
* Integer pipeline of Athlon 64 is a little longer, which allows reaching higher clock frequencies. The integer pipeline of this processor has 12 stages altogether, while the FPU – 17 stages, against 10 and 17 stages respectively by Athlon XP.
* Athlon 64 supports SSE2 instructions. This way this processor will support all existing extensions of x86 instructions set, which will allow it to work faster with applications optimized for Intel Pentium 4 processors.
* Athlon 64 feature a built-in DDR SDRAM controller, so that it can communicate with the memory directly thus reducing the latencies on data requests.
* The CPU and the South Bridge will be connected with the HyperTransport bus with up to 3.2GB/sec bandwidth in each direction.
* Athlon 64 processor supports x86-64 technology, which allows it to work in special 64bit applications.
De test
# Athlon XP 2800+ based on Barton core (512KB L2 cache, 333MHz bus). This processor features the same rating as our Athlon 64, but it works at a much higher actual frequency of 2083MHz. Testing this processor today will allow us to estimate how true the rating used for Athlon 64 processors marking is.
# Athlon XP based on Thoroughbred core working at 1.6GHz core clock and 400MHz bus. Testing this processor today will allow us to evaluate how efficient were the architectural improvements introduced in Athlon 64 and how greatly they tell on the processor performance.
# Pentium 4 2.8C GHz processor. This CPU working with 800MHz bus and supporting Hyper-Threading technology will be one of the major competitors to Athlon 64 2800+ by the time the new AMD processor is out.
# Pentium 4 2.53GHz processor working with 533MHz bus and featuring no Hyper-Threading support. This CPU will be one of the slowest Pentium 4 processors in the coming fall, so that we will be able to get a better idea of the Athlon 64 performance
De Athlon 64 kan dus met DDR PC3200 geheugen werken
We haven’t yet seen a memory controller as efficient as this one! The practical DDR400 SDRAM bandwidth measured in Sandra2003 test equals 96% of the theoretical one. The integrated memory controller is evidently a very efficient solution.
Voor de overige tests moet je maar op xbitlabs kijken, maar de site is op dit moment erg traag.
http://www.xbitlabs.com/articles/cpu/display/athlon64.html
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Voor 47% gewijzigd door
XWB op 19-04-2003 10:41
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