Clock Rate Fluctuating In Goldsrc (HL1 Engine) Game(s) - FPS Drops

[Paft]

Bad FPS drops in TFC...

Upgraded to a MSI R9 280X GAMING 3 GB from a N470GTX-M2D12

I removed the nVidia drivers with DDU and installed the latest Catalyst Version (13.12).

Done the same with the AMD drivers...no change.

I haven't tried many games yet but I can run Bioshock Inf and Metal Gear Rising MAXED well.

What's the deal here?



Idle temps and specs below:

    Operating System
                Windows 7 Ultimate 64-bit SP1
            CPU
                Intel Core i5 760 @ 2.80GHz    23 °C
                Lynnfield 45nm Technology
               (Not overclocked yet)
            RAM
                8.00GB Dual-Channel DDR3 @ 662MHz (9-9-9-24) = Default
                764MHz (9-9-9-28) = O.C
               CORSAIR XMS3 2 x 2 GB DDR3-1600 PC3-12800 CL9 Memory Kit (CMX4GX3M2A1600C9) x2
            Motherboard
                Gigabyte Technology Co., Ltd. H55M-UD2H (Socket 1156)    29 °C
            Graphics
                W2261 (1920x1080@60Hz)
                3072MB ATI AMD Radeon R9 200 Series (MSI)    28 °C
            Storage
                2794GB Seagate ST3000DM001-1CH166 ATA Device (SATA)    26 °C
                59GB OCZ-VERTEX4 ATA Device (SSD)
                931GB SAMSUNG HD103UJ ATA Device (SATA)    21 °C
                931GB Seagate ST310005 28AS USB Device (USB (SATA))    31 °C
                149GB Western Digital WDC WD16 00BEVT-60ZCT1 USB Device (USB (SATA))    31 °C
           Power
                Corsair GS600

GPU/CPU temps stay in 30s in TFC.


Bioshock stays at "1020MHz" whislt in-game, apart from when in loading screens:


TFC fluctuates:





And by FPS drops I mean it isn't even stable at 125. It will drop to as low as 60 when online with players. My 470GTX would stay rock solid at 125 most of the time.

No word from AMD yet: http://forums.amd.com/game/messagevi...word1=cs%201.6