i3DSpeed, March 2010
ATI RADEON HD 4870 1024MB DDR5 (750/750/3600 MHz)
Andrey Vorobiev; April 7, 2010.
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On the example of XFX RADEON HD 4870 XXX 1024MB DDR5 (750/750/3600 MHz).
Price: Newegg, Amazon.
Features:
- GPU: RADEON HD 4870 (RV770)
- Memory: 1024 MB GDDR5 SDRAM in 8 Qimonda chips on the front side; 1000 (4000) MHz peak clock rate
- Interface: PCIe x16
- GPU (ROPs/Shaders) clock rate: 750/750 MHz (nominal)
- Memory clock rate, physical (effective): 900 (3600) MHz (nominal)
- Bus width: 256-bit
- Vertex processors: -
- Pixel processors: -
- Unified processors: 800
- Texture processors: 40 (BLF/TLF)
- ROPs: 16
- Size: 220x100x33 mm
- PCB color: black
- RAMDACs/TDMS: integrated into GPU
- Outputs: DVI (Dual-Link/HDMI), DisplayPort, HDMI, VGA
- VIVO: -
- Multi-GPU: Hardware CrossFire
Maximum resolutions and frequencies:
- 240 Hz maximum refresh rate
- 2048 x 1536 x 32bit @ 85Hz Max - analog interface
- 2560 x 1600 @ 60Hz Max - digital interface (all Dual-Link DVIs)
MPEG2 playback (DVD-Video) was analyzed back in 2002 and little has changed since that time. Modern graphics cards do not load CPUs during video playback by more than 25%.
The HDTV review is available here.
We thank XFX
for the provided graphics card.
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