AMD Athlon 64 3800+ and FX-53: The First 939 CPUs
by Derek Wilson on June 1, 2004 12:30 AM EST- Posted in
- CPUs
Development Workstation Performance
Interestingly, removing the latency of the registered RAM from the socket 940 based FX processors really helps speed up compile time. Here we see a whole second increase in compile time for the FX-53 processor (which translates to a very long time when only talking about 13.4 seconds to being with). This is interesting because we would expect most of the data we are compiling to be in the L2 cache after the first couple times we compile it, but apparently not even 1MB of cache is enough keep the memory interface from having an impact on performance.
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Icewind - Tuesday, June 1, 2004 - link
Slight gramatical problem here......As we have mentioned in previous news articles, these new CPUs will run at the 3500+ will run at 2.2GHz while the 3800+ and FX-53 will run at 2.4 GHz each.
I think you wanted to say "These new CPU"S will be starting at the 3500+ model running at 2.2ghz to the 3800+ running at 2.4ghz."
Viditor - Tuesday, June 1, 2004 - link
"I have updated the article to reflect the fact that we did indeed run our tests with 1T timings on the MSI K8T800 Pro 939 board"Thanks Derek...that's why I always read you guys!
WBurton - Tuesday, June 1, 2004 - link
I'm getting a bit frustrated with the Sponsored Links constantly crashing my Opera 7.x. It'd be nice to review an article without having to reboot all the time.MIDIman - Tuesday, June 1, 2004 - link
Is it possible that the release of a 64-bit OS will change all of these numbers and conlcusions?Lonyo - Tuesday, June 1, 2004 - link
1066MHz HT bus?I thought the HT bus ram 200xmult
So isn't it 200x5, or 1000MHz?
(Typo on the first page?)
boban10 - Tuesday, June 1, 2004 - link
what i dont like about many review sites that they encoding always the same codec and then say p4 is faster.well look here how they test it:
http://www.extremetech.com/article2/0,1558,1603531...
i hope that your and anandtech next reviews will be more in depth about encoding, cause if people read your reviews about encoding they will buy p4.
but p4 is not faster in all encoding and that is important to say and test. and i like this site, but if next time i see again only one test in encoding (and that where is know that p4 win) then i will not read your page anymore. and no im not amd fan, im performance fan.
mechBgon - Tuesday, June 1, 2004 - link
Jeff7181, you asked "Is running four unbuffered DIMMs really that necessary?"I was running three 512MB modules on my A7N8X Deluxe before replacing it with my K8V Deluxe. That was working out nicely for what I was using it for. When I installed my A64 and K8V Deluxe, I stepped *down* to 1.0GB because if I used all three modules, it would want to run them at DDR200/PC1600 speeds. If I could add a fourth module for 2.0GB total, that would be a welcome improvement. Yeah, I could invest in two 1GB DIMMs, I guess...
Intel's i865 and i875 families have brought 4 DDR400 DIMMs to Pentium4 owners, and that capability, along with CSA Gigabit, are two places where I have to admit Intel trumped AMD & Co. nicely, and has kept them trumped for quite a while too. So it would be nice to see AMD get their mojo working here.
DerekWilson - Tuesday, June 1, 2004 - link
I have updated the article to reflect the fact that we did indeed run our tests with 1T timings on the MSI K8T800 Pro 939 board.I appologize for the omission.
Viditor - Tuesday, June 1, 2004 - link
I wonder if Derek caught the bios setting tweak that Aces found."An incredible difference: with a faster bus turnaround, the memory subsystem is able to serve up to 24% more bandwidth, and the latency goes down from 51 (21.25 ns) to 47 cycles (19.6 ns). This results in measurable real world performance gains:
In 3DS Max 5.1, we gained 3% of performance
In Medieval War, Comanche we also gained 3%
In Wolfenstein: Enemy Territory, we gained 5.5%
In WinRAR and Plasma, the performance advantage was no less than 9%"
http://www.aceshardware.com/read.jsp?id=65000305
nycxandy - Tuesday, June 1, 2004 - link
Which motherboard was used for the 939 processors?