The ATI Radeon 4890 graphics card is ATI's new single core flagship graphics card. Based on the 4870 architecture this card features a new GPU and much faster GDDR5 memory. Clocking in at 850MHz core speed and 3900MHz out of the box this card is anywhere between 10-15% faster than the previous 4870 graphics card. In our own testing we found these cards to perform extremely well but things start to get really exciting when you use the supplied ATI Overdrive utility within the catalyst drivers. Early rumous have seen cards reaching insane speeds as high as 1000MHz core and 4800MHz memory. In our own testing we found the cards remained stable upto 990MHz core and 4600MHz memory which results in nearly 30% performance improvement over the 4870 cards and performance was incredibly close and sometimes matching GTX 285 performance levels. Now Novatech does not guarantee that these cards will overclock the same for everyone but it seems safe to say cards should happily run at 950MHz core area and 4400MHz memory. Needless to say ATI have a winner on their hands with the 4890 graphics cards.


Features
- ATI Radeon HD 4890 GPU @ 850MHz
- 1024MB GDDR5 Memory @ 3900MHz
- ATI advanced cooling solution
- 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
- PCI Express 2.0 support
- ATI CrossFireX Multi-GPU Technology
- Microsoft DirectX 10.1 support
- Shader Model 4.1
- ATI Avivo HD video and display technology
- Unified Video Decoder 2 (UVD) for Blu-ray and HD Video
- Built-in HDMI with 7.1 surround sound support
- On-chip HDCP

General

Compatability	PC
Device Type	Graphics Adapter
Enclosure Type	Plug in PCI Card
Interface Type	PCI Express x16
Card Dimensions	10.5" (L) x 3.75" (W) x 1.5" (H)

Expansion/Connectivity

Compatible Slots

1x PCI Express x16

Manufacturer Warranty

Service & Support	1 Year
Service and Support Details	Limited 1 Year

Miscellaneous

Cables Included

1x DVI-VGA Adapter 1x HDMI Adapter

Software

Software Included	ATI Catalyst Drivers
Operating System Requirements	Windows XP, Vista

Processor / Memory

Chipset	ATI / AMD Radeon 4890
Video Memory Installed	1024MB GDDR5
Core Clock Speed	850MHz
Memory Clock Speed	3900MHz
Processor Cores	800
Shader Model	4.0
Memory Interface	256 bit
ATI Crossfire Support	Yes, 2-Way & 3-Way

Video

Max VGA Resolution	2048 x 1536 @ 85Hz, 32-bit color
Max Dual-Link DVI-I Resolution	2560 x 1600 @ 60Hz, 32-bit color
Maximum HDTV Out (Component) Resolution	1920 x 1080 (1080i)
Maximum TV Out (S-Video) Resolution	720 x 480 (480i) NTSC 720 x 576 (576i) PAL
Max Monitors Supported	2
API Supported	Microsoft DirectX 10.1 and lower, OpenGL 2.1 and lower for Microsoft Windows
Display Connectors	1 Dual-Link DVI-I, HDTV + TV Out and 1 Analogue VGA