ATI Radeon HD 4000 Series discussion

[T3rm1]

@T3rm1: I would say CPU limited a bit? You hit 4114 o3marks... but at that rez I found cpu can limit a bit... If your OC was higher you'd probably make up the difference. A lot of the benchmarks were probably done on a penryn core at around 4ghz... or even your core at around 3.6ghz and up.

Not that it is horribly applicable but when i was running 3dmark 06 I was getting seemingly really low scores at standard settings... but then Bump it up to 1680 x 1050 at 4xmsaa and wow.. very little loss in performance... ( I have just an x2-4000 @ 3ghz so cpu is limiting) I bet if you run yours up at 1680 x 1050 or something and ask for others results to compare. Also are you using the latest hot fix drivers?

Yes, I'm using the latest hotfix. Do you really think my CPU limits my graphic card. I think 3GHZ on a quad core is quite a lot. And this benchmark shouldnt be affected by CPU at all.

[fornowagain]

3GHz on a quad core is the same bottleneck as 3Ghz dual core. Speed counts, the quad core will help the cpu score, wont do much to help the graphics card.

[Moty]

Most likely it has eight infamous Qimonda 1Gbit chips.

I didn't noticed that there's any good-overclockable chips in 512 mb version.

wont do much to help the graphics card.

That's just 3dmark. In crysis, for example you are no enjoing only numbers....

[ihatbs]

Of course that's true. Would you expect the other way around?

so three hd4850 linked together will perform like (2*hd4870 + hd4850) in crossfire

[Moty]

so three hd4850 linked together will perform like (2*hd4870 + hd4850) in crossfire

Yes

[alexio]

Yes

That's not completely right. I don't know how the load ballancing works with Crossfire, but it does not necessarily need to be 50/50, or 33/33/33 in this situation. You can actually get a performance improvement if one of the cards in a Crossfire config is clocked higher.

This applies to AFR.

[darkskypoet]

Yes, I'm using the latest hotfix. Do you really think my CPU limits my graphic card. I think 3GHZ on a quad core is quite a lot. And this benchmark shouldnt be affected by CPU at all.

Well like the other person said.. 3ghz quad core, for most apps s like a 3ghz dual core, or on some a 3ghz single core.

Eitherway, if you look at some of the 3Dmark ORB World records with OC'd 3870's, CPU is up around 5ghz... and the ones doing it still claim around that speed the 3870's are still scaling well with Clockspeed.

Back to Furmark tho... Here are my results with stock 4850 and a 3ghz A64 x2 (only a 4000+).

CPU does make a difference... That being said, crank the rez and eyecandy, and CPU makes less and less of a difference.

[sjg0]

hey anyone know when the bundled cards will be rolling out?

[gundamit]

E8500@4ghz 5x8
Biostar Tpower I45
Team Xtreem PC2-6400 CL3 4x1gb 1200mhz CL5
Sapphire HD4870 Crossfire
BFG Ageia Physx
Vista Ultimate 64bit SP1
Silverstone Op1000

PS i had/still have a ton of issue with p45 and crossfire

I have the same motherboard and I still can't get GPU-Z to confirm that Xfire is enabled. CCC and my benches both are okay though. Not a big deal, but if anyone can tell me how to get GPU-Z to show the right setting, I would appreciate it.

[darkskypoet]

Hey... Check this Review Out... 2 x 4870 + 1 x4850 is broken it seems... But 2 x 4870 and 2 x 4850 teach the GT280 a thing or two in most games...

But most noticeably... When CF works... (most games) it seems to completely get around the 512mb frame buffer limitation of a single card!!! Check in particular some of the 2560 x 1600 benchmarks, where a single card vomits, and the 2 x Crossfire package just keeps on slamming the frames back.

http://www.guru3d.com/article/radeon...ex-performance

[Jowy Atreides]

1gb 4850

[Nuckin_Futs]

Is this tread still open? I am now wanting to return to the ATI relm of cards since the X1900 on my ASUS P5WDG2-WS !975X. I also on a build budget abd beed to make it count for a balance of cost per performance.

Can I get some input on cards built by PowerColor, Gygabyte, ASUS and Apallo in the 512MB sizes under $150.00 (as of 02-19-09)? I hear complaints on drivers for Vista x64 from various builders. Is this common now for drivers to be spacific to card builder and not from AMD/ATI official site? Ie: the card and driver in question is the latest drivers from PowerColor.

I am currently running on an X38 and X48 Maximus Formula and Rampage Extreme and ready to move to the Rampage II Extreme on X58/ICH10R soon.

[Nuckin_Futs]

Once you guys chose the right chip version, what brand name builder do you choose and for what reasons?

What can one expect from builders like Powercolor, Apollo, Sparkle, Galaxy, Zotec, Palit and so on?

Of the big dogs, what names do you go with and for what features?

I haven't had an ATI new since the good 'ol days of "built by ATI" w/ the Radeon 9800 Pro

[EniGmA1987]

I didn't noticed that there's any good-overclockable chips in 512 mb version.

I habe a 512MB version that the core goes up to 850MHz and the mem goes to 4.2GHz. That is as high as Catalyst Control will let me put the RAM, ATI Tools doesnt work with the card since it is a custom PCB from Palit.

[trueg50]

I habe a 512MB version that the core goes up to 850MHz and the mem goes to 4.2GHz. That is as high as Catalyst Control will let me put the RAM, ATI Tools doesnt work with the card since it is a custom PCB from Palit.

Lucky...

For some reason I can only do ~820mhz core (though I can do 4.4ghz on the memory), no matter how many volts I put in (1.3v, 1.32v, 1.35, 1.4, 1.45), it still stays stubbornly unstable.

[Nuckin_Futs]

Wow, I didnt realize talking about your own card and brand was such hard thinking. I find it hard to believe nobody on this forum baught a 4850 or 4870 to speak of.

Oh well, I will just stick with tried aand true, the nVidia series. I guess I will choose stable and reliable over braggin" scores. lol

[loften]

ok so i just installed two sapphire 512 hd4870's in crossfire yesterday. first 3dmark 06 run of right at 20k. i can not overclock them at all from stock settings or my computer freezes in 3dmark 06, not even a little oc on the core or memory..

[MrHydes]

HIS HD 4870 IceQ 4+ Turbo tested

As far as memory is concerned, HIS HD 4870 IceQ 4+ is a beast. You’ll find
1GB of GDDR5 memory running at 1000MHz or 4000MHz effectively. These
cards initially packed 512MB, but 1GB versions came about as an answer to
Nvidia’s Geforce GTX 260 cards.


GDDR5 memory offers twice the bandwidth per pin at same clocks,
compared to GDDR3/4 memory. This means that 512-bit GDDR3 card
features the same bandwidth as 256-bit GDDR5 cards, provided they’re
both running at same clocks of course. While HD 4870 uses GDDR5
memory at 900MHz and has a 115.2GB/s bandwidth, Radeon HD 4850’s
GDDR3 memory at 993MHz will provide 63.6GB/s.


Now we’ll say something about HIS HD 4870 IceQ4+ Turbo’s overclocked
core, which runas at 770MHz compared to reference 750MHz. Although
IceQ 4+ packs some serious performance, HIS didn’t overclock the card by
much. After we finished our overclocking tests, it dawned on us as to
why this is so, as the maximum stable clock we achieved was 808MHz.
HIS was fair and didn’t go overboard with their overclocking. However,
even at 770MHz and the memory at 1000MHz (4000MHz effectively) this
card is capable of running all the latest games.







source: fudzilla

[loften]

i got to play with mine a little more.. the memory will do 1000 on both cards no problem as long as i don't touch the core.. the 9.2 ccc drivers are working pretty sweet i have overclocking on both cards and fan controll..

[Nuckin_Futs]

OK, so it's clear I'm not gonna get any feedback on a HD4850. in terms of builds and brand names. Can I at least get some feedback on day to day reality of how unstable they really are in Vista x64? I hear two sides to these in general for the entire HD4xxx series. I am not interested in high clocks if it is not stable at simple 3d desktop or Photoshop work or just integrating w/ ACPI sleep and hibernate functions.

What kind of weirdness are you guys experiencing to shead some light on the subject for somebody sort of interested in an ATI Radeon HD4xxx series card to run on Vista x64?

[SpeedEuphoria]

Asus Top 4850 here and no probs, well I tried to use 8.12HF driver just yesterday and it gives code 39 error and driver wont load. Otherwise everything works fine on 9.1, 9.2 drivers. My card now has a new S1 rev 2 HS since it didnt come stock with VRM cooling. If I had to do it again I would jumped on the MSI 4850 that was onsale yesterday. Works fine in Vista 64

Overall it plays everything fine on 1680x1050 for me, source games I underclock to reference speeds(at lower voltage) and run my quad on EIST/C1E settings of 6x400 and still get average of 60+FPS.

Also I use latest beta of ATT(ati tray tool) in vista 64, right click and install as admin to bypass the unsigned driver issue.

I nocked off 15w on idle power consumption by reducing clocks to 360/600, the mem is what saves power and my card only goes as low as 600 on mem, otherwise I get artifacts at desktop.

[ILikeCosmosS]

the 4870x2 can beat a gtx 295? i just looked at the benchmark scores in the previous post

[Bo_Fox]

the 4870x2 can beat a gtx 295? i just looked at the benchmark scores in the previous post

I think the GTX 295 beats the 4870X2 in like 60-70% of the games, and the 4870X2 is better in the rest of them...

[SNiiPE_DoGG]

the 4870x2 wins is a lot of games and resolutions. the 295 wins in a lot of games and resolutions. you guys the card for the games you play and the things you use it for.

If you fold and play COD:WAW and GTA4 and then you buy the 295.

If you watch lots of HD video and play L4D AND FC then you buy a 4870x2

[benko]

ok folks i edited my bios,i will flash it with atiflash but firsty i want to see have i set all parameters good??
i cahnged stock 1.26v to 1.35v so i can now set 830 for core.
especially look at fan setting and did i set good clocks(i dont want to have 500/500 at load).