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RDRAM vs. DDR RAM; Does it make a difference?
RDRAM vs. DDR RAM; Does it make a difference? - PCSTATS
The processor throws fits like a baby when there is not enough memory bandwidth, something which can often keep it from performing up to its potential.
Filed under: Memory Published:  Author: 
External Mfg. Website: Various May 16 2002   C. Sun  
Home > Reviews > Memory > Various

Benchmarks: Sandra, PCMark 2002

Sisoft Sandra 2002 Source: Sandra

Sandra is designed to test the theoretical power of a complete system and individual components. The numbers taken though are again, purely theoretical and may not represent real world performance.

SiSoft Sandra 2001 Benchmark Results

Memory Benchmark


5. Integer ALU - 850Pro5 (RDRAM) 2512 MB/s
5a. Integer ALU - 845 Ultra (DDR) 2045 MB/s
6. Float FPU - 850Pro5 (RDRAM) 2509 MB/s
6a. Float FPU - 845 Ultra (DDR) 2045 MB/s

Here Sandra reports that RDRAM has about 2.5 GB/s worth of bandwidth for both ALU and FPU while DDR only has about 2 GB/s of bandwidth. It's funny to see that DDR performing much closer to it's potential while RDRAM is still quite a bit off.

PCMark 2002 Source: MadOnion

PCMark is a new benchmark from our pals at MadOnion which a whole system benchmark. It can be used on desktop PC's, Laptops and even Workstations and tests everyday computing from home to office usage. PCMark specifically stresses the CPU, memory subsystem, graphics subsystem, hard drives, WindowsXP GUI (if WinXP is used), video performance and even laptop batteries. This benchmark was released March 12, 2002 and can be downloaded from Madonion if you would like to give it a test run on your computer for comparisons sake... don't cry to hard when you compare your numbers to the ones listed below!

PCMark2002 Benchmark Results
Memory PCMarks Ranking
850Pro5 (RDRAM) 4195
845 Ultra (DDR) 3816

PCMark2002 prefers RDRAM over DDR RAM in its memory benchmark. It seems that RDRAM performs close to 10% better then DDR.

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Contents of Article: Various
 Pg 1.  RDRAM vs. DDR RAM; Does it make a difference?
 Pg 2.  Benchmarks: Sysmark 2002, Winstone 2001
 Pg 3.  — Benchmarks: Sandra, PCMark 2002
 Pg 4.  Benchmarks: 3DMark 2001 SE, QIII Arena
 Pg 5.  The final conclusions; RDRAM vs. DDR RAM

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