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
#81 and anyone who thinks it isnt important to benchmark dx9 performance:When you have 2 of the most highly anticipated games due for release over the next few months (halflife2 and doom3 for those who are asleep at the wheel) which both include dx9 features, Why in gods name would you buy a $500 card that _doesn't_ support dx9 features effectively? You would obviously have to be someone who isnt interested in having the best quality visuals you can get, and that is the exact opposite to the reason anyone would spend that amount of money on a video card in the first place. People want to see the best quality with the best performance! I simply cannot understand why someone would buy one of these expensive cards expecting that they would need to buy another equally or more expensive card as soon as such new dx9 titles appear... the simple truth is that you would have to be a fool with money to burn if you are prepared to pay $500 for a card that cannot perform well in new games that arrive after a couple of months
It's not a matter of whether dx9 features should be benchmarked, it's a matter of how.. I will avoid the whole benchmarking fiasco going on with regard to cheats, but why do you think people put such weight in programs which are designed to predict the performance of hardware on future games? People want cards that will perform well with _future_ games! It is just a pity there arent more tools available that can provide a RELIABLE prediction of how hardware will perform with these future games.
Anonymous User - Wednesday, October 1, 2003 - link
#90If you're serious enough to inquire about BF1942...why not test it using TFC? I personally enjoy the soles of my Air Nikes, but come on, Reebok? I think I'd rather buy a pair of New Balance at my local shoe wharehouse. ATi has proven itself to be capable of running today's graphically intense games, just as smooth as STEAM is running HL. Thx for the tests, ATech.
Anonymous User - Wednesday, October 1, 2003 - link
How about benchmarking the game with Battlefield 1942? I know it isn't one of the most graphically intensive games out there, but it is one of the most popular.Anonymous User - Wednesday, October 1, 2003 - link
Any chance of benchmarking Soldier of Fortune 2, it may be old but still very popular online.Anonymous User - Wednesday, October 1, 2003 - link
No discussion of image quality for each game?Other sites now do this as a matter of course as it is clear that Nvidia is taking shortcuts on quality to maximize speed. Hey I own a 4600 Gold Sample so I am not an ATI zealot, but I know where my next card purchase this year is going, that is clear from all the reviews I have seen.
I think its time you look beyond raw frame rates.
Anonymous User - Wednesday, October 1, 2003 - link
id like to see doom 3 when availableAnonymous User - Wednesday, October 1, 2003 - link
thanks #65\#77, that is very interestingit doesnt make a lot of sense as to why such scores would increase... unless it was some sort of driver 'bug'...
Anonymous User - Wednesday, October 1, 2003 - link
#73, who in their right mind would use the PCI slot next to the AGP slot? That's a surefire way to give you graphics card trouble.Anonymous User - Wednesday, October 1, 2003 - link
I would suggest adding a few sports games to the mix; I myself would prefer Madden 2004. Thank you :)Anonymous User - Wednesday, October 1, 2003 - link
ADDD HL2