Topic Title: Radeon 7850 fps drops
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Created On: 06/30/2013 12:22 PM
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 06/30/2013 12:22 PM
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Joined: 06/30/2013


I recently purchased a new pc, with saphire hd 7850 card, specs are :

Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130318-1533)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-990FXA-D3
BIOS: Award Modular BIOS v6.00PG
Processor: AMD FX(tm)-8150 Eight-Core Processor (8 CPUs), ~3.6GHz
Memory: 8192MB RAM
Available OS Memory: 8174MB RAM
Page File: 2488MB used, 13856MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11

Card name: AMD Radeon HD 7800 Series
Manufacturer: Advanced Micro Devices, Inc.
Chip type: AMD Radeon Graphics Processor (0x6819)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_6819&SUBSYS_E221174B&REV_00
Display Memory: 4095 MB
Dedicated Memory: 2029 MB
Shared Memory: 2066 MB
Current Mode: 1680 x 1050 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: M2294D-PZ
Monitor Id: GSM56B2
Native Mode: 1680 x 1050(p) (59.883Hz)
Output Type: HDMI
Driver Name: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver File Version: 8.17.0010.1172 (English)
Driver Version:


The problem that i have, in most games i play - from dota 2, to neverwinter, etc etc, is that i randomly get fps drops, so low as 1-5 in my opinion, no matter what graphics settings i use, either low or high. There are no erorrs, no blue screen, and i'm 99% sure it's not an overheat problem


 I just don't know where to start, or what to do, to solve my problem.

I would gladly try anything, just name it


Thanks in advance

 09/09/2013 04:14 PM
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Joined: 09/09/2013

Just to add to this topic, I have a similar problem with the Radeon 7870, I'm also using Windows 7 and have latest drivers.

Exact 7870 is MSI R7870 Twin Frozer 2GD5

anyway, I believe our issues are similar, and I seem to have found the cause. It is as you mentioned, likely not an overheat issue.

At seemingly random points in a game my FPS drops and it's accompanied shortly afterwards with a clock speed drop and then increase, I did solve it for a short while by disabling the 2D shader clock, but this fix seems to have stopped working. Every time this happened my heat was no greater than 54 (I average around 50 Celcius, 52-54 being the very top while running high end games).

Anyone know how to enforce a constant clock so it doesn't keep dropping out, I only plan to keep it active in game and will switch it off outside of games to save power.

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