ATI's New High End and Mid Range: Radeon X1950 XTX & X1900 XT 256MB
by Derek Wilson on August 23, 2006 9:52 AM EST- Posted in
- GPUs
Power to the People
The major power hog of this generation is the X1900 XTX, as we have made clear in past articles. Almost disturbingly, a single X1900 XTX draws more power than a 7950 GX2, and X1900 XTX CrossFire is more power hungry than 7950 Quad SLI. While ATI already had the slightly lower clocked X1900 XT available for those who wanted something that acted slightly less as a space heater, they needed something that performed better and fit into the same (or better) power envelope to round out this generation of GPUs for them. What they latched on to has now given graphics cards sporting the R580+ a much needed drop in power: GDDR4.
As we explained in the GDDR4 section, the optimizations made to this generation of graphics memory technology have been designed with both power savings and potential speed in mind. We've already seen how the higher speed memory pulls through in our performance tests, but how does it hold up on the power front?
For this test, used our Kill-A-Watt to measure system power at the wall. Our load numbers are recorded as maximum power draw during a run of 3DMark06's fill rate and pixel shader feature tests.
Apparently, JEDEC and ATI did their jobs well when deciding on the features of GDDR4 and making the decision to adopt it so quickly. Not only has ATI been able to improve performance with their X1950 XTX, but they've been able to do so using significantly less power. While the X1950 XTX is still no where near the envelope of the 7900 GTX, drawing the same amount of power as the X1900 XT and 7950 GX2 is a great start.
It will certainly be interesting to see what graphics makers can do with this RAM when focusing on low power implementations like silent or budget products.
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Ecmaster76 - Wednesday, August 23, 2006 - link
Is it a GDDR3 or a DDR2 product?If the former, any chance it will crossfire with x1600 xt? Oficially I mean (methinks a bios flash might work, though x1650 is maybe a 80nm part)
coldpower27 - Wednesday, August 23, 2006 - link
No I don't think that would work.an X1650 Pro has 600/1400 Speeds so 100% sure is GDDR3, DDR2 doesn't exisit at such high clockspeed.
Genx87 - Wednesday, August 23, 2006 - link
Some of the other reviews had this x1950XT beating the GX2 almost every time, sometimes by a wide margin.I still cant get over the power\transistor\die size to performance advantage Nvidia has over ATI right now.
PrinceGaz - Wednesday, August 23, 2006 - link
Interesting. The first review I read was at where the X1950XTX beat or equalled the 7950GX2 every time, then here the reverse is true. I think I'll have to read more reviews to decide what is going on (it certainly isn't CPU limitations). Maybe 's focus on optimum quality settings rather than raw framerate is the reason they favoured ATI, and another is the clear fact that when it came to minimum framerates instead of average framerates ( posted both for all tests) the X1950XTX was especially good.In other words the 7950GX2 posted great average numbers, but the X1950XTX was playable at higher quality settings because the minimum framerate didn't drop so low. Hopefully some other sites also include minimum framerates along with graphs to clearly show the cards perform.
I remember a few years ago when ATs graphics card articles included image-quality comparisons and all sorts of other reports about how the cards compared in real-world situations. Now it seems all we get is a report on average framerate with a short comment that basically says "higher is better". Derek- I strongly suggest you look at how test cards and the informative and useful comments that accompany each graph. There may only have been three cards in their comparison but it gave a much better idea of how the cards compare to each other.
Anyway I'll not be getting any of these cards. My 6800GT has plenty of performance for now so I'll wait until Vista SP1 and the second-generation of DX10 cards which hopfully won't require a 1KW PSU :)
PrinceGaz - Wednesday, August 23, 2006 - link
It seems the comments system here uses the brackets in HardOCP's abbreviation as some sort of marker. Apologies for making the rest of the text invisible, please amend my comment appropriately. I was talking about HardOCP by the way, when I said they use minimum framerates and optimum quality settings for each card.JarredWalton - Wednesday, August 23, 2006 - link
Don't use {H} in the comments, please. Just like {B} turns on bold, {H} turns on highlighting (white text).
JarredWalton - Wednesday, August 23, 2006 - link
Ah, seems you figured that out already. ;) I need to see if we can disable that feature....haris - Wednesday, August 23, 2006 - link
Actually if you look at all of the reviews a bit more closely the sites the scores depend on which processor is being used for the test. It appears that nVidia cards tend to run better on Conroes(probably just means the games are slightly less cpu bottlenecked at the resolutions being tested) while ATi tends to run better on AMD systems(or when the cpu is slowing things down) Of course that is IIRC from the 5 reviews I skimmed through today.coldpower27 - Wednesday, August 23, 2006 - link
No just no X1950 XTX alone is not more powerful then the 7950GX2. Only in ATI favourable scenarios or where SLI flat out doesn't work will this occur.UNESC0 - Wednesday, August 23, 2006 - link
you might want to run dual monitors...