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Sapphire Vapor-X Radeon HD4890 1GB Graphics Card
Author: Jason Kohrs
Manufacturer: Sapphire
Source: Sapphire
Comment or Question: Post Here
Page: 1 of 10 [ 1 2 3 4 5 6 7 8 9 10 ]
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June 12, 2009

The Radeon HD4890 is currently the top of the line single GPU graphics card available from AMD. While it may be a rather subtle upgrade overly the extremely popular Radeon HD4870, it does offer refinements in terms of energy efficiency and performance that should appeal to gamers looking to get the best bang for their buck. Never satisfied with just releasing a typical product, Sapphire now offers a variety of Radeon HD4890 cards, including the factory overclocked Vapor-X Radeon HD4890 1GB unit shown in the promotional image below.

Promo Image

This card gives the reference design RV790 GPU a slight speed boost from 850MHz to 870MHz, while also giving the GDDR5 memory a bump from 975MHz to 1050MHz. During this review we will take a closer look at the physical features and performance enhancements that make the Vapor-X Radeon HD4890 stand out. Before we get to that though, let's take a closer look at some published data on it as taken from the official product page on the Sapphire website.


Factory overclocked at 870 MHz.
Sapphire Patent Pending Black Diamond Choke
Quiet and Powerful Dual Slot Vapor-Chamber Cooler
    Under 20 dbA in 2D Operation
    Under 30 dbA in 3D Operation before 85 degree ℃.
Solid Capacitors
1 GB of GDDR5 memory
DirectX 10.1 support
800 stream processing units
24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
Quad mode ATI CrossFireX multi-GPU support for highly scalable performance
PCI Express 2.0 support
Dynamic geometry acceleration
Game physics processing capability
ATI Avivo HD video and display technology
    Unified Video Decoder 2 (UVD 2) for Blu-ray and HD Video
    Accelerated Video Transcoding (AVT)
    DVD Upscaling
    Dynamic Contrast
    Built-in HDMI with 7.1 surround sound support
Dynamic power management with ATI PowerPlay technology
ATI Stream technology


I/O Output: Display Port+HDMI+DL-DVI+VGA
Core Clock: 870 MHz
Memory Clock: 1050 MHz, 4.2 Gbps
PCI Express 2.0 x16 bus interface
1024MB /256bit GDDR5 memory interface
Dual Slot Vapor-X Cooler
HDMI compliant via dongle
7.1 Audio Channel Support
Microsoft DirectX 10.1 support
Shader Model 4.1 support

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