The Radeon HD 4850 is comprised of a staggering 800 (160x5) SPUs, 40 TAUs and 16 ROPs. Compare this to the 320 (64x5) SPUs, 16 TAUs and 16 ROPs of the Radeon HD 3870 and you can quickly begin to understand why we feel this card could be much more potent than current mid-range offerings. Also to be noted, the Radeon HD 4850 boasts a memory bandwidth of 64GB/s, while the Radeon HD 3870 was limited to 57.6GB/s of bandwidth.  Surprisingly however, the core and memory clock frequencies are not all that impressive. The Radeon HD 4850 features a core clock frequency of just 625MHz and a GDDR3 memory speed of 2000MHz DDR. This is lower than a previous generation Radeon HD 3870, however just like it the 4850 uses a 256-bit memory bus, which seems to be the norm for any card costing less than $600!  While ATI has dropped out of the race to deliver the most advanced and complex GPUs, they are still kicking along with some very impressive products. The Radeon HD 4850 is actually the third fastest product in the new 4000 series to be announced thus far. ATI fans will have the more expensive Radeon HD 4870 to look forward to in the coming weeks.

Sapphire 2xHD4850 CF owner here....   

Asus Brand is most expensive and today i just saw only Cycom got sold Asus brand only and Price are RM750

http://www.newegg.com/Product/ProductList....+HD+4000+series

There is some picture there..

wow . card just out less then 1month . but already V2 lol..

too bad no big games recently and now just play WOW . or else sure upgrade to Hd4800 series .

So many user of 4800 user posted already, but i'm not 4800 user, still 3870, 
Still waiting for 4850 variants.