Hello weary traveler, you've come to the right place.Gota wrote:I just posted hoping people here have some inside knowledge or tried some of the newer cards/seen good comparisons on the web.
Used 4890s should be available on the cheap pretty soon as people upgrade to 5xxx and Fermi. The only people who bought 4890s were hardcore enthusiasts, since it only offered a fairly small bump over the 4870, which itself wasn't that much better than a 4850. So those people will be upgrading (as I did) and probably putting their old cards onto Craigslist/Kijiji/eBay, etc.
In a few weeks ATI will be releasing the 5830 - a further budget-oriented high-end chip which will probably be able to achieve pretty decent speeds when overclocked, comparable to a 5850 I'd guess. It should run nice and quiet if my own 5850 is any indicator.
At the top end, NV will be releasing Fermi cards for $700 and $500. Yes, those are the official pre-order prices. The $700 card will run on average about 5% faster than ATI's $300 5870 and will herald the beginning of a new age of prosperity for all mankind... or something. Extremely low quantities will be available for some reason, possibly to do with the 2% yield rate and the fact that NV will be taking a loss on every card, selling them only to help offset the otherwise catastrophic losses that attempting to adapt these ultra-high-end computing-oriented GPGPU cards to gaming tasks has brought.
Second-generation Fermi cards probably won't be such losers, but the pooch has officially been sodomized Japan-style the first time around. 8 months late and still likely to only be a PR launch, 280 watts peak power per card, fan duty cycle harkening back to the Geforce FX line's vacuum cleaner sound level, and a price:performance ratio that is literally less than half that of the competition's. Nasty.
Almost simultaneously, ATI will be releasing their 6-display version of the 5870, probably with some added VRAM. After this, you can expect things to quiet down since ATI will be facing absolutely no market opposition in the next 6-8 months or so.
In summary, I'd wait for the end of March before making any purchasing decisions, since you will likely find better prices and wider range of products.
But as long as you're running at 1680x1050 or below, your 4850 TBH can probably comfortably last you until the next cycle (Q4 2010/Q1 2011) - which will likely put ATI and NV in opposite market positions, since ATI is now focusing heavily on bringing themselves up to GPGPU par in their own next chip from what I've heard, while NV is going to be focusing on cleaning up this mess.
In the interim there will probably be a 5870 refresh from ATI, a 5890 sort of thing as you'd expect, which they can pretty much release at their leisure as they've had lots of time to let a stock of high-binned parts to build up. I was originally planning to wait and get one of these, but various factors compelled me to buy a new card sooner.