PowerColor Radeon X1800 GTO - Page 2

by Hilbert Hagedoorn on: 04/18/2006 06:00 AM [ ] 0 comment(s)

What is a MHz ?

One MHz represents one million cycles per second. The speed of microprocessors, called the clock speed, is measured in megahertz. For example, a graphics processor that runs at 600 MHz executes 600 million cycles per second. Each computer instruction requires a fixed number of cycles, so the clock speed determines how many instructions per second that processor can execute.

Well my friends, let's get this article started, as usual .. in-depth. The Radeon X1800 GTO is of course a product of the latest X1000 family of ATI GPUs. The X1800 GTO series is priced at a valuable 220,- to 249,- USD. The X1800 GTO core you'll find on this new graphics card is running at a tact frequency of 500 MHz accompanied with it's memory running at (2x500MHz) 1 GHz. Speaking about memory, it's gDDR3 memory and there's 256MB of it. Do you recognize the X1800 XT specifications already? More significantly .. do you recognize the X1800 XL already ?

I would not be rather shocked to see the GTO work with an XL BIOS. But I'm sure a couple of buyers will definitely try that out. It looks like this products comes from the same product line. So yeah .. correct .. it's the same chip yet is has less pixel pipelines active. The product is equipped with 256MB 256-bit memory, it is armed with eight Vertex processors and furthermore utilizes the entire feature set that the entire X1000 family of products entail.

Some miscellaneous features:

Ultrathreaded Architecture with fast dynamic branching

12 Pixel Shader Processors

8 Vertex Shader Processors

512-bit ring-bus memory controller

256-bit memory interface

DX9 Shader Model 3.0 support

Simultaneous support for HDR and Anti-aliasing

Avivo video & display feature set

H.264 playback acceleration

Two dual-link DVI outputs

Full 10-bit display processing & output capability

CrossFire support

Single-slot PCI Express board configuration

Radeon card	Pixel Shader Units	Vertex Shader Units	Texture Units	Core Frequency	Memory Frequency	Memory	Price in USD	Available
X1900 XTX	48	8	16	650	775	512 gDDR3	549	Now
X1900 Crossfire	48	8	16	625	725	512 gDDR3	599	Now
X1900 XT	48	8	16	625	725	512 gDDR3	479	Now
X1900 AIW	48	8	16	500	500	256 gDDR3	499	Now
X1800 XT	16	8	16	625	1.5 GHz	256/512 gDDR3	329 /449	Now
X1800 XL	16	8	16	500	1.0 GHz	256 MB gDDR3	449	Now
X1800 GTO	12	8	16	500	1.0 GHz	256 MB gDDR3	249	Now
X1600 XT	12	5	4	590	1.38 GHz	128 / 256 MB	199 / 249	Now
X1600 PRO	12	5	4	500	780 MHz	128 / 256 MB	149 / 199	Now
X1300 PRO	4	2	4	600	800 MHz	256 MB	109	Now
X1300	4	2	4	450	500 MHz	128 / 256 MB	99 / 129	Now
X1300 Hypermemory	4	2	4	450	1 GHz	32 / 128 MB	79	Now

Alright, let me commence the usual blurbs. The GTO of course has super support for Shader Model 3.0 as it finally became important in the industry and we now see broad support for it.

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