Fall 2003 Video Card Roundup Part I - ATI's Radeon 9800 XT
by Anand Lal Shimpi & Derek Wilson on October 1, 2003 3:02 AM EST- Posted in
- GPUs
The Newcomers
As we briefly mentioned, there are three new products to talk about today – the Radeon 9800 XT, the Radeon 9600 XT and then NVIDIA’s NV38.
The XT line of Radeon 9x00 cards is specifically targeted at the very high end of the gaming market. With AMD and their Athlon 64 FX, Intel and the Pentium 4 Extreme Edition, it’s not too surprising to see even more companies going this direction. With an ultra-premium part like the Radeon 9800 XT the profit margins are high and more importantly, the PR opportunities are huge – claiming the title of world’s fastest desktop GPU never hurts.
The effort required to produce a part like the Radeon 9800 XT is much lower than a serious redesign. When making any kind of chip (CPU, GPU, chipset, etc…) the design team is usually given a cutoff point where they cannot make any more changes to the design, and that is the design that will go into production. However, it is very rare that manufacturers get things right on the first try. Process improvements and optimizing of critical paths within a microprocessor are both time intensive tasks that require a good deal of experience.
Once ATI’s engineers had more experience with the R350 core and more time with it they began to see where the limitations of the GPU’s clock speed existed; remember that your processor can only run as fast as its slowest speed path so it makes a great deal of sense to change the layout and optimize the use of transistors, etc… to speed up the slow paths within your GPU. This oversimplified process is what ATI and their foundry engineers have been working on and the results are encompassed in the R360 – the core of the Radeon 9800 XT.
The Radeon 9800 XT is able to run at a slightly higher core frequency of 412MHz, quite impressive for ATI’s 0.15-micron chip (yes, this is the same process that the original R300 was based on). Keep in mind that the Radeon 9800 Pro ran at 380MHz and you’ll see that this 8% increase in clock speed is beginning to reach the limits of what ATI can do at 0.15-micron.
The Radeon 9800 XT does receive a boost in memory speed as well, now boasting a 365MHz DDR memory clock (730MHz effective) – an increase of 7% over the original Radeon 9800 Pro and an increase of 4% over the 256MB 9800 Pro. ATI was much more proud of their core clock improvements as we will begin to crave faster GPU speeds once more shader intensive games come out.
The Radeon 9800 XT does have a thermal diode (mounted on-package but not on-die) that has a driver interface that will allow the card to automatically increase its core speed if the thermal conditions are suitable. The GPU will never drop below its advertised 412MHz clock speed, but it can reach speeds of up to 440MHz as far as we know. The important thing to note here is that ATI fully warrantees this overclocking support, an interesting move indeed. Obviously they only guarantee the overclock when it is performed automatically in the drivers, as they do not rate the chips for running at the overclocked speed in all conditions.
The OverDrive feature, as ATI likes to call it, will be enabled through the Catalyst 3.8 drivers and we’ll be sure to look into its functionality once the final drivers are made available.
The Radeon 9800 XT will be available in the next month or so and it will be sold in 256MB configurations at a price of $499 – most likely taking the place of the Radeon 9800 Pro 256MB.
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Anonymous User - Wednesday, October 1, 2003 - link
I think that the new reviews should include Half-life 2....when availableAlso when UT2k4 comes out toward the end of the year (or is available to anand), UT2k3 should be replaced as a benchmarking tool. It seems likely that the graphics engine will be tweaked and better looking, as well as include very large levels in UT2k4
Anonymous User - Wednesday, October 1, 2003 - link
This is what I want to see used for CPU articles. Your old crap tests suck (well, unreal 2003 is still used). This is MUCH more useful to someone trying to find out how the latest games will run on their new cpu. Why use quake3 in cpu articles when you can use a bunch of games like this? Do people care more about quake3 or the batch of games you're using here for tesing vid cards? The very same games apply to picking a new cpu. NOT Q3. That game is DEAD.Anonymous User - Wednesday, October 1, 2003 - link
You guys should really indicate what the API used for each game is -- DX8, 8.1, 9 or Open GL. That would help out a lot in determining if a company optimizes for an API, a single game, or everything... not everyone follows the game industry enough to know which games are programmed in which graphics API....Jeff7181 - Wednesday, October 1, 2003 - link
Just so ya know... overclocking will dramatically increase the performance... check this thread I created here for some overclock GeForceFX5900 results...http://forums.anandtech.com/messageview.cfm?catid=...
Davegod - Wednesday, October 1, 2003 - link
"This is the first installment of a multipart series that will help you decide what video card is best for you, and hopefully it will do a better job than we have ever in the past.The extensive benchmarking we’ve undertaken has forced us to split this into multiple parts, so expect to see more coverage on higher resolutions, image quality, anti-aliasing, CPU scaling and budget card comparisons in the coming weeks. We’re working feverishly to bring it all to you as soon as possible and I’m sure there’s some sort of proverb about patience that I should be reciting from memory to end this sentence but I’ll leave it at that."
Worth repeating since least 3/4 of whiners seem to have not noticed it. About 1/4 remains for the driver 'issues', which isnt mentioned but still might be/hopefully is intended, although I'd assume it to take at least as much time as the entire rest of the roundup.
Ye, hopefully parts I-III will include something to give more of an indication of Dx9. With a bit of luck it'll be the HL2 bench - the delay of which maybe being the reason for little in the way of Dx9?
- DG
Anonymous User - Wednesday, October 1, 2003 - link
please include every game that has been made in the past 5 years, so everyone will be happy and will shut the hell up! :)Anonymous User - Wednesday, October 1, 2003 - link
regarding AA on halo, disabling the alpha render targets prevents the game from turning it off.Anonymous User - Wednesday, October 1, 2003 - link
nvidia can compete only in dx.7 and dx.8 or opengl 1.2 games due to wrong strategy of their ceo mr.hu ho ha nv 35 architecture has failed do you really think that nvidia can force microsoft to include nvidia custom shader language [code] in dx.9Anonymous User - Wednesday, October 1, 2003 - link
While I can appreciate the work it took to generate all these benchmarks...what a complete and utter waste of time! Less than 10% bumps in the clockspeed? Zzzzzzz. I'd have sent it back to ATI and told them to call when they had something interesting.Anonymous User - Wednesday, October 1, 2003 - link
It would be much more helpful if you included an older video card for reference. Like a geforce 4200, 4600. I am sure there are several users like myself who bought one of these cards in the past year or so and would like to see how it compares to what is new to see how benificial a new upgrade would be.