ATI Radeon HD 4850 Preview: AMD Delivers Performance for the Masses
by Anand Lal Shimpi & Derek Wilson on June 19, 2008 5:00 PM EST- Posted in
- GPUs
Power, Thermals, Noise and Die Size
The Radeon HD 4850 is a single slot design, but the card itself gets very hot. At idle the card is mostly silent, but like the GeForce GTX 280 you can hear this thing once the fan spins up. It's definitely not as loud as the GTX 280, but it's not silent under full load.
The Radeon HD 4850 draws a bit less power than its closest competitor, the GeForce 9800 GTX.
With two 4850s paired up in CrossFire, we once again ran into issues with our power supply. Our 1000W OCZ EliteXStream wasn't always enough for the dual-GPU setup and in Call of Duty 4 our system rebooted in the middle of our test at 2560 x 1600. Thankfully OCZ sent us a PC Power & Cooling Turbo Cool 1200W unit that is certified for use with GeForce GTX 280 SLI, and if it works on that beast, it had better work with a pair of 4850s in CrossFire.
The PCP&C unit is quite loud as we mentioned in our review, but it got the job done, we were able to run all of our benchmarks without a hiccup after swapping power supplies. Despite AMD's small-GPU strategy, power consumption on multi-GPU configurations is still just as much of a problem as it is for NVIDIA.
The Test
| Test Setup | |
| CPU | Intel Core 2 Extreme
QX9770 @ 3.20GHz |
| Motherboard | EVGA nForce 790i SLI Intel DX48BT2 |
| Video Cards | ATI Radeon HD 4850 ATI Radeon HD 3870 X2 ATI Radeon HD 3870 NVIDIA GeForce 9800 GTX NVIDIA GeForce 9800 GX2 NVIDIA GeForce 8800 GTX NVIDIA GeForce 8800 GT NVIDIA GeForce GTX 280 NVIDIA GeForce GTX 260 |
| Video Drivers | Catalyst Catalyst 8.5 ForceWare 177.34 (for GT200) ForceWare 175.16 (everything else) |
| Hard Drive | Seagate 7200.9 120GB 8MB 7200RPM |
| RAM | 4 x 1GB Corsair DDR3-1333 7-7-7-20 |
| Operating System | Windows Vista Ultimate
64-bit SP1 |
| PSU | PC Power & Cooling Turbo Cool 1200W |
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formulav8 - Sunday, June 22, 2008 - link
I know this is a late reply but I will do it anyways. :)I am just going by what your testbed specs says...
------------------------------
Video Drivers
Catalyst
Catalyst 8.5
ForceWare 177.34 (for GT200)
ForceWare 175.16 (everything else)
------------------------------
If you used Beta drivers you probably should have updated that in the specs and whether they are based on 3.5 or 3.6. It would still be nice to see some results with the new official 3.6 driver though. :)
Jason
formulav8 - Sunday, June 22, 2008 - link
I meant to say 8.5 and 8.6 not 3.5 and 3.6 :)Jason
goinginstyle - Friday, June 20, 2008 - link
Is the beta based on 8.5 or 8.6?jpeyton - Friday, June 20, 2008 - link
Newegg had the Asus 4850 for $199 with a $30 MIR to bring the total to $169.People are reporting seeing the Visiontek 4850 on Best Buy shelves for $199, but this week's ad has all Visiontek video cards at 25% off, so that brings it down to $149.
$149 for a 9800 GTX killer? AMD is turning the GPU price/performance market on its head overnight with this release.
jovdes018 - Friday, June 20, 2008 - link
only if amd/ati could polish performance scaling with future drivers, 4870x2 in crossfire mode would really hit a hammer on every nvdian head.im so exited!!!BikeDude - Friday, June 20, 2008 - link
and how do these cards perform playing movies? Without resorting to the malware package aka "PowerDVD"?msgclb - Friday, June 20, 2008 - link
On your Crysis benchmarks why don’t you tell us if you’re using AA. You do for most of the other benchmarks. Does the lack of any AA = No AA? I was going to ask DX9/DX10, 32-bit/64-bit but you do list your operating system as Windows Vista Ultimate 64-bit SP1 so I’m guessing that you’re using 64-bit DX10.I get lousy Crysis results using Vista 64-bit DX10 with my dual 8800 GT SLI system but I get better scores than yours if I use DX9.
I appreciate all the work you put in to keep us informed.
DerekWilson - Friday, June 20, 2008 - link
we do 64-bit dx10 noAA for crysis.bob4432 - Friday, June 20, 2008 - link
hopefully this will drop the price of the 3850 :)GlassHouse69 - Friday, June 20, 2008 - link
When is a tech company going to stop sucking NDA manchicken?anadtech has lots of bruises on their knees.
"stay tuned kids for the 4870 while we polish off this knob!"