Feeds

back to article Sapphire Radeon HD 4850 X2 dual-GPU graphics card

The thinking behind the ATI Radeon HD 4870 X2 seems quite clear. One 4870 and a bunch of GDDR 5 is the basis for a decent graphics card that costs £200-240 but lacks the grunt to take on the GeForce GTX 280. Join two 4870s together on a single card and you have the "fastest gaming graphics card in the world", allegedly. As an …

COMMENTS

This topic is closed for new posts.
E

Call for new test

Some kind of GPGPU CUDA/CAL benchmark would be good to see. If the new Adobe CS4 products support both architectures they may make a good test.

GPUs as computational accelerators are a coming idea - many common media tasks will benefit. But all the benches concentrate on games and game related things.

Just my $0.02.

0
0
Flame

165W in Windows?

Toasty

0
0
Linux

Quick Linux compatibility check?

Hi,

Given that you've probably got quite a few Linux users in your readership, would it be possible to do a brief check of hardware like this on Linux?

Nvidia kit generally has very good OpenGL support, and is very good with simulators like X-Plane, Silent Wings or FlightGear. It would be nice if you could see if the ATI/AMD kit is beginning to improve the Linux driver support since the two companies merged.

It would be nice if you could do a more in-depth report than "yes, it works and it looks nice", but even thats better than nothing :-)

Thanks!

0
0
Anonymous Coward

Looks as if

ATI may finally be getting their act together. When I got to rebuild (my now three year old) game rig I may have to take a look at their cards in comparison to nVidia, thanks.

0
0
E
Linux

@Paul

ATI Linux driver support has improved dramatically from several years ago. I have a number of machines with ATI cards (3870, 24-something, a 690 based uATX board with integrated graphics and a Dell with embedded ATI graphics). The ATI installer is pretty bulletproof and the performance is good. Not at all like back in the days of the 9700. I used to worry about using ATI with Linux: I do not anymore.

I have read that neither ATI nor Nvidia supports CF/SLI under Linux. I don't know if it is true. Can anyone confirm or refute?

The driver is built around a kernel module and if the kernel is updated then the graphics driver must be reinstalled, which is a pain. But Nvidia is the same in this regard.

FWIW, ATI's CAL or Stream Computing SDK also runs on Linux now. As much as I have played with it, it seems to work well (I have not had as much experience with CAL as with CUDA though.)

AFAIK - as of about 8 months ago - neither CAL nor CUDA will use both GPUs if the GPUs are in Crossfire/SLI mode. This would be a problem with ATI or Nvidia. If the cards are not paired up then both are available - I've verified this with an Nvidia 8600 and 8800 in the same box, and it is what ATI says in it's docs.

0
0
Dead Vulture

Spurious results

The two 4870 X2 bars in the charts have the same description, I assume the second is overclocked? However some of the benchmark/timing results for various cards are clearly spurious compared to their overall performance differentials. I suggest you revisit this.

0
0
This topic is closed for new posts.