Each Streaming Multiprocessor(SM) in the chip architecture contains 8 SPs and 2 SFUs. Each SP can fulfill up to two single precision operations MAD per clock. Each SFU can fulfill up to four operations SF per clock (these units can also handle single-precision floating-point multiplications per clock). The approximate ratio of operations MAD to operations SF is equal 2:1. The theoretical SP + SFU performance in single-precision floating point operations [FLOPSsp + sfu, GFLOPS] of the graphics card with shader count [n] and shader frequency [f, GHz], is estimated by the following formula: FLOPSsp+sfu; f × n × 3. Alternative formula: FLOPSsp+sfu; f × m × ( 8 SPs * 2 (MAD) + 4 * 2 SFUs ). [m] - SM count. SP - Shader Processor (Unified Shader, CUDA Core) SFU - Special Function Unit SM - Streaming Multiprocessor MAD - ADD+MUL |
Name | GPU Clock | Memory Clock | Other Changes |
---|---|---|---|
ASUS ROG 8800 Ultra
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612 MHz | 1080 MHz | |
EVGA 8800 Ultra
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612 MHz | 1080 MHz | 267 mm/10.5 inches |
EVGA 8800 Ultra Black Pearl
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655 MHz | 1125 MHz | Single-slot |
EVGA 8800 Ultra KO
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638 MHz | 1125 MHz | |
EVGA 8800 Ultra Special Edition
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630 MHz | 1100 MHz | |
EVGA 8800 Ultra Superclocked
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655 MHz | 1125 MHz | |
GIGABYTE 8800 Ultra
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612 MHz | 1080 MHz | |
PNY XLR8 8800 Ultra Overclocked
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648 MHz | 1116 MHz | |
XFX 8800 Ultra Extreme
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650 MHz | 1110 MHz | |
XFX 8800 Ultra XXX
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675 MHz | 1150 MHz | |
XFX 8800 Ultra XXX V2
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685 MHz | 1150 MHz |