Hey all,

Purchased the HD 7950 3gig and installed it into a Gateway FX6860 (i7 2600 3.4GHz,  750w Power, 8g RAM) &without doing ANY research about prerequisites. My bad, but heres what I am finding and would love any advice before I return the product.

After seeing little or no performance improvement in framerates over the HD 6750 1g running the flight simulator Prepar3D 64bit version 1.4, I downloaded and ran CPU-Z to get some specifics.

I immediatly noticed that CPU-Z was only showing 1024 MBytes in memory size for the HD7950. I am using Catalyst Control Center which came with the card.

What am I missing here?

Thanks,

Michael

Graphics Card
Radeon HD7970-DC2-3GD5

Operating System
Win 7 64-bit; Service Pack 1 build 7601

Issue Details
Poor performance (framerate) in Prepar3D 1.4 64 bit

Motherboard or System Make & Model
Gateway FX6860, Intel Core i7-2600 CPU @ 3.4GHz, 3401 Mhz 4 cores, 8 Logical Processors

Power Supply
FSP Group FSP450-60EP, Max wattage 450 Peak 500, full specs http://www.fsp-group.com/english/1_product/2_detail.asp?mainid=1&fid=176&proid=656

Display Device(s) and Connection(s) Used
3 Samsung 23” HD S23B550 1680 x 1050 @60Hz extended via HDMI, Display Port, and DVI

Applications and Games
Prepar3D 1.4 64bit

CPU Details
Intel Core i7-2600 CPU @ 3.4GHz, 3401 Mhz, 4 cores, 8 Logical Processors

Motherboard BIOS Version
American Megatrends Inc. P01-A3, 4/19/2011

System Memory Type & Amount
4 x UNIFOSA 2GB DDR3 1333MHZ UNB. DIMM

Edited: 11/22/2012 at 03:18 AM by dancemad

Since the time of my initial post, I remedied my performance problems with a full uninstall of the ATI drivers using ATIMAN and re installation from the Video Card installation disk. Running three 23" Monitors in Eyefinity mode, I was able to fly the PMDG NGX around Seattle with Clouds and ORBX PNA and full renderings at 40fps. Looks like the old driver files were hanging around and not playing well with others.

Cheers,
Michael

Enjoy it while it lasts, that 450w piece of backstreet sweatshop Chinese firecracker of a PSU will take out your whole system before to long. At 200w at stock speeds (the power draw of the 7950 under full load) you are running that rail way to close to peak, not to mention that FSP isn't exactly a top tier brand.

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Crosshair IV Formula, Phenom II x4 965 w/ Corsair H60, 8 GiB OCZ Platinum DDR3 1600, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64