ATI's Late Response to G70 - Radeon X1800, X1600 and X1300
by Derek Wilson on October 5, 2005 11:05 AM EST- Posted in
- GPUs
Feature Overview
There are quite a few exciting new features being introduced with ATI's new X1000 series. Of course, we have a new line of hardware based on a more refined architecture. But at the end of the day, it's not the way that a company implements a dot product or manages memory latency that sells product; it's what consumers can do with the hardware that counts. ATI will not disappoint with the number of new features thtat they have included in their new top to bottom family of graphics hardware.
To provide a quick overview of the new lineup from ATI, here are the key featuers of the X1000 series.
Running on a 90nm TSMC process has given ATI the ability to push clock speeds quite high. With die sizes small and transistor counts high, ATI is able to pack a lot of performance in their new architecture. As the feature list indicates, ATI hasn't just waited idly by. But the real measure of what will be enough to put ATI back on top will be how much performance customers get for their money. To start answering that question, we first need to look at the parts launching and their prices.
Along with all these features, CrossFire cards for the new X1000 series will be following in a few months. While we don't have anything to test, we can expect quite a few improvements from the next generation of ATI's multi-GPU solution. First and foremost, master cards will include a dual-link TMDS receiver to allow resolutions greater than 1600x1200 to run. This alone will make CrossFire on the X1000 series infinitely more useful than the current incarnation. We can also expect a better compositing engine built on a faster/larger FPGA. We look forward to checking out ATI's first viable multi-GPU solution as soon as it becomes available to us.
Rather than include AVIVO coverage in this article, we have published a separate article on ATI's X1000 series display hardware. The high points are a 10-bit gamma engine, H.264 accelerated decoding and hardware assisted transcoding. While we won't see transcoding support until the end of the year, we have H.264 decode support today. For more details, please check out our Avivo image quality comparison and technology overview.
There are quite a few exciting new features being introduced with ATI's new X1000 series. Of course, we have a new line of hardware based on a more refined architecture. But at the end of the day, it's not the way that a company implements a dot product or manages memory latency that sells product; it's what consumers can do with the hardware that counts. ATI will not disappoint with the number of new features thtat they have included in their new top to bottom family of graphics hardware.
To provide a quick overview of the new lineup from ATI, here are the key featuers of the X1000 series.
- Fabbed on TSMC's 90nm process
- Shader Model 3.0 support
- Fulltime/fullspeed fp32 processing for floating point pixel formats
- New "Ring Bus" memory architecture with support for GDDR4
- Antialiasing supported on MRT and fp16 output
- High quality angle independent Anisotropic Filtering
- AVIVO and advanced decode/encode support
Running on a 90nm TSMC process has given ATI the ability to push clock speeds quite high. With die sizes small and transistor counts high, ATI is able to pack a lot of performance in their new architecture. As the feature list indicates, ATI hasn't just waited idly by. But the real measure of what will be enough to put ATI back on top will be how much performance customers get for their money. To start answering that question, we first need to look at the parts launching and their prices.
| ATI X1000 Series Features | ||||
Radeon X1300 Pro |
Radeon X1600 |
Radeon X1800 XL |
Radeon X1800 XT |
|
| Vertex Pipelines | 2 |
5 |
8 |
8 |
| Pixel Pipelines | 4 |
12 |
16 |
16 |
| Core Clock | 600 |
590 |
500 |
625 |
| Memory Size | 256MB |
256MB |
256MB |
512MB |
| Memory Data Rate | 800MHz |
1.38GHz |
1GHz |
1.5GHz |
| Texture Units | 4 |
4 |
16 |
16 |
| Render Backends | 4 |
4 |
16 |
16 |
| Z Compare Units | 4 |
8 |
16 |
16 |
| Maximum Threads | 128 |
128 |
512 |
512 |
| Avaialbility | This Week |
11/30/2005 |
This Week |
11/5/2005 |
| MSRP | $149 |
$249 |
$449 |
$549 |
Along with all these features, CrossFire cards for the new X1000 series will be following in a few months. While we don't have anything to test, we can expect quite a few improvements from the next generation of ATI's multi-GPU solution. First and foremost, master cards will include a dual-link TMDS receiver to allow resolutions greater than 1600x1200 to run. This alone will make CrossFire on the X1000 series infinitely more useful than the current incarnation. We can also expect a better compositing engine built on a faster/larger FPGA. We look forward to checking out ATI's first viable multi-GPU solution as soon as it becomes available to us.
Rather than include AVIVO coverage in this article, we have published a separate article on ATI's X1000 series display hardware. The high points are a 10-bit gamma engine, H.264 accelerated decoding and hardware assisted transcoding. While we won't see transcoding support until the end of the year, we have H.264 decode support today. For more details, please check out our Avivo image quality comparison and technology overview.
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HamburgerBoy - Wednesday, October 5, 2005 - link
Seems kind of odd that you'd include nVidia's best but not ATi's.cryptonomicon - Wednesday, October 5, 2005 - link
I was expecting ATI to make a comback here, but the performance is absolutely abysmal in most games. I dont know what else to say except this product is just gonna be sitting in shelves unless the price is cut severely.bob661 - Thursday, October 6, 2005 - link
LOL! I wouldn't say abysmal. Abysmal would be the X1800XT performing like a 6600GT. The card that doesn't do well is the X1600. X1800's are fantastic performers and certainly much better than my 6600GT at displaying all of a games glory. It just wasn't the ass kicker most everyone hyped it up to be. But technically speaking, it IS an ass kicker.flexy - Wednesday, October 5, 2005 - link
i am a bit disappointed - while at work i overflew the other reviews and then, as the crowning end of my day i read the AT review.I (and probably many others) were waiting for this card like it's the best think since sliced bread - and now, WAY too late we do *indeed* have a good card - but a card which is a contender to NV's offerings and nothing groundbreaking.
Don't get me wrong - better AF/AA is something i always have a big eye on, but then ATI always had this slight edge when it came to AF/AA.
The pure performance in FPS itself is rather sobering - just what we're used to the last few years...usually we have TWO high-end cards out which are PRETT MUCH comparable - and no card is really the "sliced bread" thing which shadows all others.
This is kind of sad.
The price also plays a HUGE factor - and amongst the nice AA/AF features i have a hard time to legitimate say spending $500 for "this edge"...especially as someone who already owns a X850XT .
Not as long i am still playable in HL2/DOD/Lost Coats etc....i dont think i will see FPS fall *that quick* - in other words: I can "afford" to wait longer (R580 ?) and wait for appropriate Game engines (UT2K4 ??) which would make it necessary for me to ditch my X850XT because the X850 got "slow".
D3/OpenGL performance is still disappointing - but then i dont know what NV-specific code D3 uses - but still sad to see this card getting it in the face even if it now has SM3.0 and everything.
Availability:
Well..here we go again....
Bottomline: If i were rich and the card would be orderable RIGHT NOW i would get the XT - no question.
But since i am not rich and the card is *a bit* a disappointment and obviously NOT EVEN AVAILABLE - i will NOT get this card.
It's time to sit back, relax, enjoy my current hardware, watch the prices fall, watch the drivers get better...and then, maybe, one day get one of those or A R580 :)
I WISHED it would NOT have been a day making one "sit and relax" but instead burst out in joy and enthusiasm....but well, then this is real life :)
Wesleyrpg - Thursday, October 6, 2005 - link
summarised very well mate!Regs - Wednesday, October 5, 2005 - link
They were likely better off trying to market that we didn't need new video cards this year and save their capital for next year. These performance charts, especially the "mid range" parts are awfully embarrassing to their company.photoguy99 - Wednesday, October 5, 2005 - link
I assume it was not one of the cards that come overclocked stock to 490Mhz?It seems like it would be fair to use a 490Mhz NVidia part since manufacturers are selling them at that speed out of the box with full warrenty intact.
Evan Lieb - Wednesday, October 5, 2005 - link
"Unless you want image quality."There is no image quality difference, and I doubt you've used either card. Fact of the matter is that you'll never notice IQ differences in the vast majority of the games today. Hell, it's even hard to notice differences in slower paced games like Splinter Cell. The reality is that speed is and always will be the number one priority, because eye candy doesn't matter if you're bogged down by choppy frame rate.
Right now, there is zero reason to want to purchase these cards, if you can even find them. That's fact. Accept it and move on until something else is released.
Madellga - Thursday, October 6, 2005 - link
Quality includes also playing a game without shimmering. I can't get that on my 7800GTX.Before anyone replies, the 78.03 drivers improve a lot the problem but does not fix it.
The explanation is inside Derek's article:
"Starting with Area Anisotropic (or high quality AF as it is called in the driver), ATI has finally brought viewing angle independent anisotropic filtering to their hardware. NVIDIA introduced this feature back in the GeForce FX days, but everyone was so caught up in the FX series' abysmal performance that not many paid attention to the fact that the FX series had better quality anisotropic filtering than anything from ATI. Yes, the performance impact was larger, but NVIDIA hardware was differentiating the Euclidean distance calculation sqrt(x^2 + y^2 + z^2) in its anisotropic filtering algorithm. Current methods (NVIDIA stopped doing the quality way) simply differentiate an approximated distance in the form of (ax + by + cz). Math buffs will realize that the differential for this approximated distance simply involves constants while the partials for Euclidean distance are less trivial. Calculating a square root is a complex task, even in hardware, which explains the lower performance of the "quality AF" equation.
Angle dependant anisotropic methods produce fine results in games with flat floors and walls, as these textures are aligned on axes that are correctly filtered. Games that allow a broader freedom of motion (such as flying/space games or top down view games like the sims) don't benefit any more from anisotropic filtering than trilinear filtering. Rotating a surface with angle dependant anisotropic filtering applied can cause noticeable and distracting flicker or texture aliasing. Thus, angle independent techniques (such as ATI's area aniso) are welcome additions to the playing field. As NVIDIA previously employed a high quality anisotropic algorithm, we hope that the introduction of this anisotropic algorithm from ATI will prompt NVIDIA to include such a feature in future hardware as well. "
Phantronius - Wednesday, October 5, 2005 - link
Unless you a fanboy