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*** Sapphire ATI Radeon HD 4890 Vapor-X 2048MB @ £190.99 inc VAT IN STOCK NOW ***

D D Danneh said:
I'm pretty sure if GDDR5 was cheaper than DDR3, we'd be seeing it in modules for our motherboards. Lower voltage, better performance, what's the downside? There has to be one, so I'm assuming it's cost.

If it was less expensive than DDR3, we'd probably see a lot more 2GB cards. For the sake of about £5, I'd wager that the additional 1GB would be worth it.
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And also if it was as cheap as others are suggesting then why is DDR5 not being used by nvidia on their top cards, can only be cost.

Its common sense really the most widley produced memory atm is DDR2 and DDR3, so mass producing = lower manufacturing costs = lower end user cost.

DDR5 = not wildly used = not manufactured in same quantities = higher end user cost.
 
so you can buy a normal 4890 for around £125 ...there is always a place that has them on offer if you wait a week or two.

you're paying 50% extra for extra memory......and how many games would actually benefit from this ?
oh ..im not asking for a 1% improvement...more like 20-30% improvement

could you count them on 1 hand ?
 
ANY GOOD?

Ok I am thinking of picking one of these up - how fair do they rate against my older 9800gtx

would it run crisis at full tilt for example etc?(with decent system behind it aswell)

where does it sit in the list in terms of best cards out there?

liking the connectivity options for hooking PC up to TV at some point (HDMI)

thanks guys
 
bifday2k said:
And also if it was as cheap as others are suggesting then why is DDR5 not being used by nvidia on their top cards, can only be cost.

Its common sense really the most widley produced memory atm is DDR2 and DDR3, so mass producing = lower manufacturing costs = lower end user cost.

DDR5 = not wildly used = not manufactured in same quantities = higher end user cost.
Click to expand...

GDDR is not DDR
 
Had this card delivered today but just got around to installing it due to work, only had chance to try crysis but so far i'm amazed by the power of this card, no problems running crysis with max details @1440*900.( max my monitor allows) will test some more tommorrow and put some benchmarks up. i'm hopeing this will play arma 2.
 
demonfatality said:
xfx 4890 xt stock 875 running @935core 1100mem xfire

£145 each...do the maths


o...ill do them...saved £90
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What exactly are you getting at?

The point of these cards is the extra memory, i.e more power at HIGH resolutions, meaning people who play on the big stuff like 30" monitors or big multi screen set ups.
 
sldsmkd said:
GDDR is not DDR
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It's the same stuff, just different generations and versions.

You could say that GDDR5 is DDR6 or something like that, the only difference is they added a G for "Graphics" because it's used on graphics cards. DDR and GDDR initially were exactly the same stuff, then they branched off, which kinda makes sense, because you could manufacture "DDR6" for graphics cards, but there'd be no guarantee it would be used for DIMM's in the future, and you'd end up with DDR7 in DIMM's that performs worse than DDR6 on GPU's, then DDR8 that's better than DDR6 and 7, confusingness.

But they are, technically, just made of the same stuff. Like DDR2 and DDR3. Same stuff, but different.
 
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pretty sure that ddr and gddr are different iirc. Custom pc ran an arfticle on the stuff a while back. Ati use smaller memory bus than nividia, the reason being cost and that gdd5 transfers twice the date per clock than gddr3. it's the reason cheaper ati cards that used to ship a gddr3 version sucked ass as there throughput was throttled.

Will dig the article out maybe next week as i'm away with work atm.
 
recieved mine on saturday and it's a decent card for the price crysis very high settings with vsync off and aa off get 30-34 fps. Best I have had yet - does any one know if cross fire is worth looking into for even more power on these cards?
 
wheelscene said:
recieved mine on saturday and it's a decent card for the price crysis very high settings with vsync off and aa off get 30-34 fps. Best I have had yet - does any one know if cross fire is worth looking into for even more power on these cards?
Click to expand...

I'd hold off, the next range of ATI cards are launching next month.
 
capriboy1978 said:
pretty sure that ddr and gddr are different iirc. Custom pc ran an arfticle on the stuff a while back. Ati use smaller memory bus than nividia, the reason being cost and that gdd5 transfers twice the date per clock than gddr3. it's the reason cheaper ati cards that used to ship a gddr3 version sucked ass as there throughput was throttled.

Will dig the article out maybe next week as i'm away with work atm.
Click to expand...

Yeah, DDR and GDDR are different in that they perform differently, but they still use the same DRAM chips on the PCB's, it's just the interface connecting them that is different.
 
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