AMD To Launch Radeon HD4890 "RV790" In April

[NapalmV5]

Why you want 2gb?

I understand the need for 1 gb (i got one myself), but 2gb is overkill. No game has that much textures, not even fanmods for oblivion.

Plus the more memory the worse to oc.

maybe cause i dont play @ 640x480

you must be one of the large crowd that said 1gb is overkill/worthless when 1gb 4870 was released.. and all of you were proven wrong

despite 1gbs lower clock still offers more performance even @ 1024x768 vs 512mb

i play @ heavly loaded 1920x1080 so i certainly need 2gb

you guys dont need/want 2gb.. fine no problem.. but better not stay in my way

the day they release 4gb/8gb video cards is the day i move to 64bit win7/whatever os by then

[Macadamia]

OCUK has Vantage results at 22% increase with 13% clock boost.


40% after 4890 is overclocked.


A fellow Malaysian forumer is offering the 850Mhz at 300 and 900Mhz at 320USD. Malaysian prices are high so it's natural. For the 40% I think it's reasonable enough.

[eric66]

ok whats the deal everybody has the card but i don't see any tests even oc results whats up are you under nda or smthng ?

[Calmatory]

maybe cause i dont play @ 640x480

you must be one of the large crowd that said 1gb is overkill/worthless when 1gb 4870 was released.. and all of you were proven wrong

despite 1gbs lower clock still offers more performance even @ 1024x768 vs 512mb

i play @ heavly loaded 1920x1080 so i certainly need 2gb

you guys dont need/want 2gb.. fine no problem.. but better not stay in my way

the day they release 4gb/8gb video cards is the day i move to 64bit win7/whatever os by then

Man, YOU are XTREME. Walkin' your own paths, spitting at the crowd.. respect..

[Macadamia]

You WILL need a >1GB nVidia card.


A >1GB ATI card is really, really pointless. (I take my words back on the 2GB Vapor-X.)


In 1920*1200 8x AA, Far Cry 2, GTX260 uses about 450MB more vRAM than 4870.

[Bo_Fox]

You WILL need a >1GB nVidia card.


A >1GB ATI card is really, really pointless. (I take my words back on the 2GB Vapor-X.)


In 1920*1200 8x AA, Far Cry 2, GTX260 uses about 450MB more vRAM than 4870.

I thought this underlined "450MB more vRAM" was linking to the source, so I tried clicking on it to no avail. Source please?

[Macadamia]

I'm currently at work where broadband is generally fast, except to chinese sites...


I'll link it when I get home. But it's definitely 400+ MB difference, with GTX 260 at 9XX MB and 4870 not exceeding 512 yet. I saw the graphs last night and my jaw dropped.


From what a friend told me, nVidia doesn't blend the AA samples directly, rather storing them in a buffer. This can be extremely costly in several cases, and FC2 is one of them. In fact, might MSAA buffer readback (the DX10.1 feature that nV supports) be the cause of it?

[Da_maniaC]

Am anxious to see some results from 'Initiliased'.
That review doesn't look all to interesting yet imo.
You guys really thinks CCC 9.4 is going to increase performance a lot?

[Macadamia]

http://diy.pconline.com.cn/graphics/...3/1586849.html

FAR CRY 2 VRAM Usage.


Yellow is min, green is max. In all cases vRAM usage was almost near-max after loading.

[MaDuLo]

other games beside farcry showing that behaviour?

[Macadamia]

Yes.

[ToTTenTranz]

http://diy.pconline.com.cn/graphics/...3/1586849.html

FAR CRY 2 VRAM Usage.


Yellow is min, green is max. In all cases vRAM usage was almost near-max after loading.

Auch!

That's probably why the 8800GT 256MB was such a disaster, performance-wise.