Topic Title: Newbie needs advice
Topic Summary: New Radeon HD 7950 not performing
Created On: 11/22/2012 02:33 AM
Status: Post and Reply
Linear : Threading : Single : Branch
Search Topic Search Topic
Topic Tools Topic Tools
View similar topics View similar topics
View topic in raw text format. Print this topic.
 11/22/2012 02:33 AM
User is offline View Users Profile Print this message

Author Icon

Posts: 2
Joined: 11/22/2012

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?



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

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

Edited: 11/22/2012 at 03:18 AM by dancemad
 11/23/2012 10:23 PM
User is offline View Users Profile Print this message

Author Icon

Posts: 2
Joined: 11/22/2012

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.


 11/23/2012 10:31 PM
User is offline View Users Profile Print this message

Author Icon
80 Column Mind

Posts: 13506
Joined: 04/17/2008

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.

AMD FX-8350 w/ Corsair H105, ASUS Sabertooth 990FX Gen3/R2, 8GiB G.SKILL DDR3-2133, XFX HD 7970 GHz Edition, 1TB Samsung 850 Evo, 256GB OCZ Vector, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, Corsair C70, HP ZR2440w, Win 7 Ult Ed x64
92787 users are registered to the AMD Support and Game forum.
There are currently 3 users logged in.

FuseTalk Hosting Executive Plan v3.2 - © 1999-2015 FuseTalk Inc. All rights reserved.