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Hercules 3D Prophet 4500 benchmarks

Edward schrijft dat RivaStation, naast een korte preview, ook de eerste benchmarks van de op de Kyro 2 gebaseerde Hercules 3D Prophet 4500 64MB videokaart heeft. Het testsysteem bestond uit een Pentium III 1GHz en draaide een Quake III benchmark:

Quake 3
3D Prophet 4500
 Normal 800x600
99,4
 Normal 1024x768
89,4
 Normal 1280x1024
62,2
 Normal 1600x1200
41,7
 HQ+Max Tex 800x600
95,3
 HQ+Max Tex 1024x768
79,0
 HQ+Max Tex 1280x1024
52,3
 HQ+Max Tex 1600x1200
35,1
[break] De kaart moet in april voor 150 dollar in de winkels liggen. Meer info kun je in de press release vinden, waarvan hieronder een paar gedeeltes:[/break]

• Hidden Surface Removal - How to optimize the use of memory bandwidth

A 3D Scene is made up of triangles. 3D Prophet 4500 Kyro 2 chipset creates 3D triangles and determines which surfaces are displayed and which remain hidden, it then maps textures only onto the visible surfaces.
This results in:

  • Optimised use of the RAM bandwidth
  • Higher fill rate
  • Strong 3D acceleration in high-textured scenes, because it only draws what can be seen onscreen

• 8-layer Multi-texturing
3D Prophet 4500 supports up to 8 layers of different textures that can be combined together in order to obtain lifelike 3D environments, and more realistic details on backgrounds and surfaces.

How it works:
All the texture blending process is performed in a local tile buffer:

  • Gain in performance due to an increased CPU
  • Image quality increase due to internal texture blending instead of superposing different textures

• Internal True Color™
Whether the chosen mode is 16-bit or 32-bit, all the blending operations on all the pixels in each tile are performed on-chip in full 32-bit color (16.7 million colors). There is no loss of color precision during the process.
In 16-bit mode, it is only at the end of the blending process and at the frame buffer's output that the final texture is trimmed to its 16-bit value. In this way, the image quality in 16-bit mode is as close as you can get to 32-bit image quality.

• Full Scene Anti-Aliasing (FSAA)
Tile rendering supports full speed FSAA, even in high resolution.

Environmental Bump Mapping (EBM)
EBM is used to simulate rough or bumpy textures with irregularities in their shading. 3D Prophet 4500 performs true EBM, by adding for example a base texture, plus a bump texture, a light texture or an environment bump.

Door Tweakers

10-03-2001 • 12:54

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Bron: Riva Station

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