Just upgraded my aging AMD HD7870 to a new Asus Strix 4gb GTX 970, I'm getting an FPS increase below
Empty map all up highest
HD7870 - 89 FPS
GTX970 - 301FPS
If you are in UK Asus Strix 4GB GTX 970 can be got at £245 from PC world.
Aftershock Quad Core AMD FM2+ 3.5 GHz 8GB Motherboard and Processor, A7700k apu, AMD HD7870 gfx card.
King Korg Synth, Alesis SR18 Drum Machine, Akai MPX8 sample player, Roland Fantom XA Synth, Axus Digital AXK2 Digital Drum Kit, Novation Ultranova Synth, Waldorf Blofeld Synth.