View Full Version : Official R520. R530, and R515 info at Anandtech
I guess you are more informed. :o
I'm informed enough to know that all things being equal, 512MB memory won't necessarily equate to higher performance than a 256MB card, as we've seen many times before with previous cards.
I'm informed enough to know that all things being equal, 512MB memory won't necessarily equate to higher performance than a 256MB card, as we've seen many times before with previous cards.
Read my previous post again please. :)
Yup Fotis is correct. More ram will never give you higher framerates, however with a 512mb card, FEAR, BF2, and EQ2 you will be able to play even more smoothly with 1gb of ram, then you ever would on 2gbs of ram.
Read my previous post again please. :)
I've read your post and I don't really see what point you're trying to make.
If it's about you experiencing stuttering in FEAR and other games,
I haven't found any games to date which stutter on a 256MB card with 2GB of RAM.
I was under the impression that game developers have to write specific code to take advantage of the extra ram available on these new video cards. From all the benchmarks I've seen there seems to be no difference frame rate wise between 256 and 512mb cards running the same gpu core.
Yup Fotis is correct. More ram will never give you higher framerates, however with a 512mb card, FEAR, BF2, and EQ2 you will be able to play even more smoothly with 1gb of ram, then you ever would on 2gbs of ram.
Thats why I'm waiting for the X1800XL. Unless nVidia can put out a 512mb 7800GT under $500 I'll be going with ATI this round.
I've read your post and I don't really see what point you're trying to make.
If it's about you experiencing stuttering in FEAR and other games,
I haven't found any games to date which stutter on a 256MB card with 2GB of RAM.
Thats our point. The games them selves do not require 2GB of memory, but the 256mb graphics cards are running out of memory and look to the system for it. This is the cause of the stuttering. You don't want to substitute system memory for graphics memory.
I was under the impression that game developers have to write specific code to take advantage of the extra ram available on these new video cards. From all the benchmarks I've seen there seems to be no difference frame rate wise between 256 and 512mb cards running the same gpu core.
No. Its just wether or not the app uses more than the allotted framebuffer. Normally, you won't notice a big framerate hit between a 256mb card and a 512mb card, but you won't have the annoying stutters when the graphics card runs out of memory and looks to the system.
Now the digital times is sayin the XT is 32 pipe and XL 24 pipe. I personally believe anandtech.
http://www.digitimes.com/news/a20050914A7037.html
Thats our point. The games them selves do not require 2GB of memory, but the 256mb graphics cards are running out of memory and look to the system for it. This is the cause of the stuttering. You don't want to substitute system memory for graphics memory.
Yes, system ram is very slow compared to the video ram.
R520 gotta kick G70's butt by at least 20% overall for me to considering getting an X1800XT.
The 7800 GTX impresses even an old fanATIic. :cool:
fivefeet8
09-14-05, 12:51 PM
Now the digital times is sayin the XT is 32 pipe and XL 24 pipe. I personally believe anandtech.
http://www.digitimes.com/news/a20050914A7037.html
Several sites have reported similar specs along with Anandtech. Now we only need to get some game benchmarks.
Yes, system ram is very slow compared to the video ram.
I haven't seen any 256/2GB vs. 512/1GB benchmarks that show an advantage for the 512/1GB combo. Do you have any links?
Just curious...
Edit: And I have seen comments with the X800 512 cards that BF2 is smoother with the 512/1GB then jus tthe 256/1GB. However, I have not seen benchmarks.
I would like to see links as well...
I kind of believe the A.Tech article.
But, for me, its kinda hard to digest that r520 vs G70, r520 will have the edge. Especially after considering its gonna be 16pp. i Hoped the r520xt wuld be 32pp.
I need to see the benchies to descide.
AthlonXP1800
09-14-05, 02:21 PM
Something not very right about these X1800 prices, X1800 LE and Pro are $50 higher, X1800 XT and XL with 512Mb memory prices are lower. People at Rage3D forum believed these prices are typo, they pointed X1800 XL with extra 256Mb memory, 50MHz core and 125MHz memory are $50 more than X1800 Pro, that cant be right. They think the prices are came from Anandtech, not official ATI prices.
Here are some interesting information about 512 bit internal memory controller, quote from The Inquirer:
ATI won't be able to take the full advantage of 512 bit memory and that the memory will operate as a 256 memory but will save some cost to ATI.
We don't know all the details but we believe that 512 bit memory controller can help you to use less chips on your board. I believe that you don’t have enough interconnections on the PCB to take the full advantage of 512 bit memory controller.
We all thought 512 bit memory controller could have to do something with AA/AF or SM 3.0 dynamics branching or more bandwidth or give more performance. It all nothing to do with that so it all about saving some costs.
Here are some interesting information about 512 bit internal memory controller, quote from The Inquirer:
We all thought 512 bit memory controller could have to do something with AA/AF or SM 3.0 dynamics branching or more bandwidth or give more performance. It all nothing to do with that so it all about saving some costs.
I've bolded the only important part.
I do agree with the prices being fishy.
benchiesssss....... :drooling:
Thats our point. The games them selves do not require 2GB of memory, but the 256mb graphics cards are running out of memory and look to the system for it. This is the cause of the stuttering. You don't want to substitute system memory for graphics memory.
:rolleyes: lol, Some games require 2gb of system ram and that is why the stuttering goes away because once RAM gets full it starts to access the hard drive.
You think that with 512mb of GFX RAM and 1gb of memory will cut it do you. The games that need 2gig of ram now (BF2, FEAR) will carry on needing 2GB of ram.
If 256mb graphics cards noteably the high end are running out of memory wouldnt it stutter if there were 2gb of system ram as well because your stating that "256mb isnt enough for todays games" and "2gb is not needed".
With a 512mb card and 1gig of ram you wil experience the same slowdown in BF2 as with a 256mb card with 1gig of ram. HAving 2gig of ram will eliminate this ;)
:rolleyes: lol, Some games require 2gb of system ram and that is why the stuttering goes away because once RAM gets full it starts to access the hard drive.
You think that with 512mb of GFX RAM and 1gb of memory will cut it do you. The games that need 2gig of ram now (BF2, FEAR) will carry on needing 2GB of ram.
If 256mb graphics cards noteably the high end are running out of memory wouldnt it stutter if there were 2gb of system ram as well because your stating that "256mb isnt enough for todays games" and "2gb is not needed".
With a 512mb card and 1gig of ram you wil experience the same slowdown in BF2 as with a 256mb card with 1gig of ram. HAving 2gig of ram will eliminate this ;)
No, you won't. At least in BF2...
http://www.hardocp.com/article.html?art=ODA2LDEx
No, you won't. At least in BF2...
http://www.hardocp.com/article.html?art=ODA2LDEx
How can you explain 2 gig of ram fixing it as well then. What im trying to say is that with this theory, a 256mb card will access the memory and dump data on to there causing stuttering with any amount of ram. Why with 2gig does it stop it then? Because with the theory of 256mb of not being enough it would access the ram at 2gig and cause stuttering as well.
Unless with 1gig of ram and 512mb of card the system turns to the 512mb on the card?
Subtestube
09-15-05, 07:26 AM
How can you explain 2 gig of ram fixing it as well then. What im trying to say is that with this theory, a 256mb card will access the memory and dump data on to there causing stuttering with any amount of ram. Why with 2gig does it stop it then? Because with the theory of 256mb of not being enough it would access the ram at 2gig and cause stuttering as well.
Unless with 1gig of ram and 512mb of card the system turns to the 512mb on the card?
The problem isn't that 256MB isn't enough, the problem is that 1 gig (Main) + 256 Meg (Video) isn't enough. In other words, the total commit of BF2 to main memory is larger than your main memory, and the graphics card when it has only 256 Meg is overflowing some of its storage into main memory. The bottleneck here isn't the AGP (or PCIe) bus, it's the HDD and virtual memory. 2 Gig (Main) + 256 Meg (Video) is adquate, and so (theoretically) would 1 Gig + 512 Meg (Video). At least, that's the way I understand it, but I could be wrong.
The problem isn't that 256MB isn't enough, the problem is that 1 gig (Main) + 256 Meg (Video) isn't enough. In other words, the total commit of BF2 to main memory is larger than your main memory, and the graphics card when it has only 256 Meg is overflowing some of its storage into main memory. The bottleneck here isn't the AGP (or PCIe) bus, it's the HDD and virtual memory. 2 Gig (Main) + 256 Meg (Video) is adquate, and so (theoretically) would 1 Gig + 512 Meg (Video). At least, that's the way I understand it, but I could be wrong.
hmm, thats a good explaination. But I dont think we have seen benchmarks of 256mb + 2gb comparing it to a 512mb +1gb.
If what you say is true and its a memory issue (gfx/system/HDD) then that woud mean 256 and 2GB given a combinment of 2304mb of ram for the game to utilise, where as 512 and 1GB would give 1536mb of ram for the game to play with. Thus still making the 2gb and 256 a better alternative than buying a 512mb card instead of upgrading to 2gb of ram.
I hope you udnerstand what I mean :)
I think benchmarks between the two though in intensive games should show us more. I thought that un compressed game textures went into the GFX RAM and if there wasnt enough GFX RAM then it would be transferred to system ram giving a slight slow down. :confused:
hmm, thats a good explaination. But I dont think we have seen benchmarks of 256mb + 2gb comparing it to a 512mb +1gb.
Benchmarks don't tell the whole story. With my X800XT I was getting the same framerates as people with 2GB of memory, but they didn't suffer from the stuttering like I did.
Benchmarks don't tell the whole story. With my X800XT I was getting the same framerates as people with 2GB of memory, but they didn't suffer from the stuttering like I did.
So the stuttering isnt visible in even the game benchmarks of BF2? I would of thought the FPS would drop under a stutter.
So the stuttering isnt visible in even the game benchmarks of BF2? I would of thought the FPS would drop under a stutter.
It is, the framerate drops to 0 for a second. The problem is that those little drops don't make a noticeable diffrence in the average framerate. Now if they use fraps and get the minimum framerate you could catch em.
It is, the framerate drops to 0 for a second. The problem is that those little drops don't make a noticeable diffrence in the average framerate. Now if they use fraps and get the minimum framerate you could catch em.
ah, Having discussed all this would you still go for a 512mb card instead of 2gig of system ram?
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