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Nvidia GeForceFX(NV30) Officially Launched
egarland writes "Tom's Hardware has a new article previewing the new GeForceFX chip and discussing its architecture. 0.13 Micron, 16 GB/s memory bandwidth, 128-bit DDR2 memory interface, 125 M transistors, support for 8x FSAA. Sounds like an interesting chip. They stuck with a 128 bit memory bus so ATI's R300 still has more memory bandwidth (19.8 GB/s) but NVidia has new lossless memory compression so we will have to wait for benchmarks to see if NVidia comes up a winner here. The reference card also sports a massive new cooling system which is worth a look."
Readers Oliver Wendell and JavaTenor add links to additional stories at The Register and at AnandTech.
Wait till February if you are going to do that. They haven't even released test samples yet. They have just finalized the design.
NVidia's official Geforce FX site
NVNews has a large group of links to previews(scroll down to the "Geforce FX Preview" article)
Some impressive images from the release demos
AnandTech's coverage includes an nVidia-supplied benchmark that shows the NV30 beating the 4600 by 2.5x in Doom 3 (and the Radeon 9700 by about 40%). Of course, no one knows under what circumstances these benchmarks were obtained. I don't think any "independent" benchmarks will be available for awhile.
Compression within graphics boards is very different than other kinds of compression. They aren't really trying to make the amount of data you need to store smaller; they are just interested in making the amount of data you need to shuffle between the chip and the card memory smaller. They also know that in some circumstances (multi-sampling) the data is going to be redundant in very predictable ways. This lets them take some shortcuts that let them have good average compression ratios, lossless, with very low latency. The risk of very bad cases is small--people aren't going to run games where everything looks like TV snow--and the worst-case penalty isn't too bad.
Dust doesn't hurt chips, but it does insulate them which can lead to excessive heat which does damage chips. Filters on cooling fans is a bad idea, simply because having a filter will increase resistance and reduce airflow which kills the desired cooling effect.
:) ) It's nice to see that nvidia is thinking of these things.
Instead of using a filter simply buy either:
1: A can of compressed air every now and then (expensive, but easy and reliable)
or
2: A small air compressor (however this can get much more expensive in the short term especially considering you need not only a compressor, but also, hose, fittings, an air chuck and most importantly a dryer (aka de-humidifer), so unless you have alot of stuff that needs cleaning and you live in a place that makes it needed fairly often you should probably stick with #1)
I must say though, what a cooling system! I don't know about everybody else, but I used to have a nice voodoo 3500 that would get so hot that you could burn yourself on it, I was always worried about that thing.... I finally rigged up a cooling system for it (yeah I know, buy one.... but it's more fun to make it out of old parts
It's similar to how you can't feel the air blowing towards a fan intake as well as you can feel the air blowing out. Try it with a household fan sometime. Orient your hand parallel to the intake/output so that you're not blocking the flow much.
So, if they can get the cool air from outside, it's a better solution than using the pre-heated air from in the case.
Can't you see that everyone is buying station wagons?