Overclocked HD4870 with some tweaking and faster clocked GPU and memory chips. First card with stock clocked 1GHz GPU(only some models).
Overclocked HD4870 with some tweaking and faster clocked GPU and memory chips. First card with stock clocked 1GHz GPU(only some models).
Zaatharen's card:
Sapphire Radeon HD4890 1GB - reference card with modded BIOS, GPU runs on 925MHz and memory chips on 4000MHz.
Sapphire Vapor-X HD4890 1GB - later version with VGA, DVI, DP and HDMI, clocks are 870MHz for GPU and 4200MHz for memory.
ATI PowerPlay (BIOS) - Vapor-X card
State #1 GPU: 870 MHz, Memory: 1050 MHz (Boot)
State #2 GPU: 870 MHz, Memory: 1050 MHz
State #3 GPU: 500 MHz, Memory: 1050 MHz (UVD)
State #4 GPU: 870 MHz, Memory: 1050 MHz
State #5 GPU: 240 MHz, Memory: 1050 MHz