Test: HIS HD 4890 iCooler x4

Specifikationer

Model Name	HIS HD 4890 iCooler x4 (Full HD 1080p) Native HDMI 1GB (256bit) GDDR5 Dual DL-DVI & TV (HDCP) PCIe (RoHS)
Chipset	Radeon HD 4800 PCIe Series
ASIC	RadeonTM HD 4890 GPU
Pixel Pipelines	800 stream processing units* (Unified)
Vertex Engines	800 stream processing units* (Unified)
Manu. Process (Micron)	55nm
Transistor	956 million
Memory Size (MB)	1024
Memory Type	GDDR5
RAMDAC (MHz)	400
Engine CLK (MHz)	850
Memory CLK (Gbps)	3.9Gbps
Memory Interface (bit)	256
Power Supply Requirement	500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in dual mode)
Max. Resolution	Two x 2560*1600 (Dual dual-link)
Bus Interface	PCI Express x16
VGA	Yes
2nd VGA	No
DVI	Yes
2nd DVI	No
TV-out	No
HDTV (YPrPb component output)	No
HDMI	Yes
TV Tuner	No
FM Tuner	No

ATI Radeon™ HD 4890 System Requirements

• PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in dual mode)
• Certified power supplies are recommended. Refer to for a list of Certified products
• Minimum 1GB of system memory
• Installation software requires CD-ROM drive
• DVD playback requires DVD drive
• Blu-ray™ playback requires Blu-ray drive
• For a complete ATI CrossFireX™ system, a second ATI Radeon™ HD 4890 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card are required