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Differences What are the advantages of each

Front view of GeForce GTS 250

Reasons to consider the
ZOTAC GeForce GTS 250

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Higher clock speed 750 MHz vs 450 MHz More than 65% higher clock speed
Higher effective memory clock speed 2,300 MHz vs 1,100 MHz More than 2x higher effective memory clock speed
Higher memory bandwidth 73.6 GB/s vs 35.2 GB/s More than 2x higher memory bandwidth
Higher texture rate 48 GTexel/s vs 7.2 GTexel/s Around 6.8x higher texture rate
Slightly more memory 1,024 MB vs 256 MB 4x more memory
Much higher memory clock speed 1,150 MHz vs 550 MHz More than 2x higher memory clock speed
More texture mapping units 64 vs 16 48 more texture mapping units
Front view of GeForce 6800 Ultra Extreme

Reasons to consider the
Nvidia GeForce 6800 Ultra Extreme

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GPUBoss is not aware of any important advantages of the Nvidia GeForce 6800 Ultra Extreme vs the ZOTAC GeForce GTS 250.

Features Key features of the GeForce GTS 250  vs 6800 Ultra Extreme 

effective memory clock speed Frequency at which memory can be read from and written to

memory bandwidth Rate at which data can be read from or stored in onboard memory

pixel rate Number of pixels a graphics card can render to the screen every second

GeForce GTS 250
12 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

GeForce GTS 250
48 GTexel/s

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

render output processors GPU commponents responsible for transform pixels as they flow between memory buffers

Specifications Full list of technical specs

gpu

GeForce GTS 250  vs
6800 Ultra Extreme 
GPU brand Nvidia Nvidia
GPU name G92 B1 NV40
Market Desktop Desktop
Clock speed 750 MHz 450 MHz
Is dual GPU No No
Reference card Nvidia GeForce GTS 250 702 MHz 1 GB None

raw performance

Texture mapping units 64 16
Render output processors 16 16
Pixel rate 12 GPixel/s 7.2 GPixel/s
Texture rate 48 GTexel/s 7.2 GTexel/s

memory

GeForce GTS 250  vs
6800 Ultra Extreme 
Memory clock speed 1,150 MHz 550 MHz
Effective memory clock speed 2,300 MHz 1,100 MHz
Memory bus 256 bit 256 bit
Memory 1,024 MB 256 MB
Memory type GDDR3 GDDR3
Memory bandwidth 73.6 GB/s 35.2 GB/s

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