− | [[Octane_Graphics_Boards]] initially included a series of cards: SI, SI+T, SSI, MXI. These are updated [[XIO]] versions of SGI's [[IMPACT]] graphics systems that originated on the [[SGI Indigo2]] including [[SGI_Solid_IMPACT]] (SI), [[SGI_High_IMPACT]] (SSI) and Maximum Impact (MXI). These were internally designated by SGI as 'MARDIGRAS' (MGRAS). The boards were later accelerated and re-engineered with faster geometry engine and texture modules to create new versions: SE, SE+T, SSE, EMXI (like the initial versions, the underlying EMXI and SSE boards are identical, however the EMXI includes TRAM). The SI/SE provides 13.5MB of framebuffer memory while the SSE and EMXI have a 27MB framebuffer. | + | [[Octane_Graphics_Boards]] initially included a series of cards: SI, SI+T, SSI, MXI. These are updated [[XIO]] versions of SGI's [[IMPACT]] graphics systems that originated on the [[SGI Indigo2]] including [[SGI_Solid_IMPACT]] (SI), [[SGI High IMPACT]] (SI+T) and [[SGI Maximum IMPACT]] (MXI with TRAM and SSI without TRAM). These were internally designated by SGI as 'MARDIGRAS' (MGRAS). The boards were later accelerated and re-engineered with faster geometry engine and texture modules to create new versions: SE, SE+T, SSE, EMXI (like the initial versions, the underlying EMXI and SSE boards are identical, however the EMXI includes TRAM). The SI/SE provides 13.5MB of framebuffer memory while the SSE and EMXI have a 27MB framebuffer. |
| The '+T' indicates an additional high speed RDRAM texture board which gives 4MB of texture memory, which is practically indispensable, though quite expensive and fragile. The SI/SE+T has one texture board while the MXI/EMXI has 2 texture boards, however, the 2 boards in the MXI/EMXI do not double the available texture memory to the system. It just doubles the texture performance. | | The '+T' indicates an additional high speed RDRAM texture board which gives 4MB of texture memory, which is practically indispensable, though quite expensive and fragile. The SI/SE+T has one texture board while the MXI/EMXI has 2 texture boards, however, the 2 boards in the MXI/EMXI do not double the available texture memory to the system. It just doubles the texture performance. |