Permedia 3:
*250 million texels-per-second
*128-bit high-bandwidth memory interface
*Two bilinear-filtered textures or a per- pixel tri-linear mip-mapped texture in a single cycle with Z-buffering, alpha- blending, stenciling, fogging and blending enabled.
*Can accept eight million polygons per second (but the processor can not deliver that many).
*Virtual Texturing
*Enhanced Delta floating point setup engine with multiple texture perspective calculations and polygon culling in hardware.
*Full-scene anti-aliasing.
*High-resolution 32-bit Z-buffer.
*270MHz RAMDAC
Savage 3D:
*Full 128-bit 2/D-Accelerator engine with a 250MHz RAMDAC
*Full 3D-Accelerator engine operating at 125MHz
*Single Cycle Rendering, enabling "free" Trilinear MipMapping
*5 million triangles per second setup engine
*125 million pixels per second fill rate
*Edge Anti-Aliasing Support
*S3 Texture Compression
*AGP 2X support
*MPEG-2 Video Texture Support
*Up to 8MB of on board SDRAM for 3D resolutions up to 1024x768x24bpp
*TV-Out supported by S-Video port and RCA Video out
cyrellis.com
TnT:
*128-bit-wide graphics engine and frame buffer
*3.2GB/sec frame buffer bandwidth supporting up to 200MHz memory
*250Mpixels/sec peak fill rate
*8Mtriangles/sec peak
*12K on-chip cache
*10GFLOPS floating-point geometry processor
*40 billion operations/sec pixel processing pipeline
*7 million transistors
*250MHz Palette-DAC
*4-16MB SGRAM/SDRAM
*24-bit or 16-bit z-buffer
*Full scene, order independent anti-aliasing
cyrellis.com
gamecenter.com
You can see that the Permedia 3 and the TnT have very similar specs. From the reviews, it seems that final performance will depend on drivers and implementation details. I think the Permedia 2 was implemented well and expect the same for the Permedia 3. A nice feature of the Savage3D is the TV out support (don't know about the other two). Also, Savage 3D cards are going to sell for about $150, while TnT is expected to sell for $250, and I would guess that Permedia 3 based cards will start at around $250. Savage 3D may get most of the non-workstation OEM design wins. I expect the Permedia 3 to keep 3D Labs in the NT workstation market. It sounds like it will play games well, but unless it can kill the Voodoo2, it will probably be priced too high.
Pravin.
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