Since the HD 5000 series was basically a die shrink of the 4000 with added DX11 support, I simply don't see a technical reason for this.Quarterly updates for older cards isn't too bad but I'm surprised the 4000 series didn't at least make the windows 8 cut.
They'll have Win8 driver support right out of the box, just not continuous (monthly) updates to their video drivers. I would guess they are basically the best optimized versions of the hardware drivers available to date, bundled in with the standard Windows device driver package. And, as @bandit8623 noted, changes to the performance of older cards is typically nonexistent in current driver revisions... Or, at the most, very minimal tweaks... So, honestly, I can't see this affecting those 4250 users much at this point.but so many people have laptops with that crappy 4250...what about them?
or does that not count?
Win8 for HD4000? Yesati, wtf?!!! no win8 for hd 4000?!!
D3DX9 is still the preminent gaming API and probably will continue to be so until the next gen console has been established long enough for game dev's to start supporting it en masse. There will still be a substantial market for DX9 long after that happens.Seems like an efficiency move to me. Now they just have to primarily concern themselves with DX11 and DX12, with DX9 and DX10 only occupying a portion of their driver update curve.
Using that logic, AMD should drop driver support for anything that isn't GCN, since that's the arch going forward. Why bother still having to account for Evergreen GPU's -since as Rick pointed out, they are more-or-less an optical shrink of the HD 4000's. Now they have to account for VLIW5, VLIW4 and GCN - which is exactly the same scenario that exists with the earlier cards includedConsidering how badly AMD gets flogged by techies for their lackluster driver situation, I'd hope this is an omen pointing to some better effort on that front.
Look on the bright side- AMD have Terry "Recurring giant cursor" Makedon heading up Trinity's graphics driver initiative.If they still fall short after narrowing their concentration down like this, then there's really not much hope moving forward.
It's less about game performance than possible driver conflicts (esp with a new OS coming out). With a monthly update, you have the chance that any problem arising is fixed relatively quickly. On legacy support you could be looking at 1-2 driver revisions (3-6 months) depending where the conflict occurs in the driver schedule.its really not that big of a deal, as all newer drivers dont really do anything to help those cards anyways.
Which means you aren't available to fine tune graphics settings (VSync, Antialiasing, Anisotropic filtering, Catalyst AI, Video Playback and more) globally and overclock your card.
I alternated card 4870 to 7950 today.Both driver have significantly difference.Since the HD 5000 series was basically a die shrink of the 4000 with added DX11 support, I simply don't see a technical reason for this.
One might argue that HD 4000 cards support DX10 while HD 5000 support DX11. However, DX11 is supposed to be backwards compatible with DX10, right? And what could Windows 8 possibly demand that any Radeon HD 4000 series couldn't handle?
Smells like planned obsolescence to me.