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Differences What are the advantages of each

Front view of GeForce GTX TITAN ULTRA

Reasons to consider the
Nvidia GeForce GTX TITAN ULTRA

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Higher memory bandwidth 288.4 GB/s vs 224.4 GB/s Around 30% higher memory bandwidth
More memory 6,144 MB vs 4,096 MB 50% more memory
Many more texture mapping units 240 vs 128 112 more texture mapping units
Higher texture rate 200.6 GTexel/s vs 155.6 GTexel/s Around 30% higher texture rate
More shading units 2,880 vs 2,048 832 more shading units
Wider memory bus 384 bit vs 256 bit 50% wider memory bus
Front view of GeForce GTX 980

Reasons to consider the
Nvidia GeForce GTX 980

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Higher clock speed 1,127 MHz vs 836 MHz Around 35% higher clock speed
Higher effective memory clock speed 7,012 MHz vs 6,008 MHz More than 15% higher effective memory clock speed
Higher pixel rate 77.82 GPixel/s vs 50.2 GPixel/s More than 55% higher pixel rate
Significantly higher turbo clock speed 1,216 MHz vs 876 MHz Around 40% higher turbo clock speed
More render output processors 64 vs 48 16 more render output processors
Higher memory clock speed 1,753 MHz vs 1,502 MHz More than 15% higher memory clock speed
Significantly lower TDP 165W vs 275W 40% lower TDP

Features Key features of the GeForce GTX TITAN ULTRA  vs 980 

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 GTX TITAN ULTRA
50.2 GPixel/s
GeForce GTX 980
77.82 GPixel/s

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

GeForce GTX TITAN ULTRA
200.6 GTexel/s
GeForce GTX 980
155.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 980
4,981 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

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

Specifications Full list of technical specs

gpu

GeForce GTX TITAN ULTRA  vs
980 
GPU brand Nvidia Nvidia
GPU name GK110 GM204
Market Desktop Desktop
Clock speed 836 MHz 1,127 MHz
Turbo clock speed 876 MHz 1,216 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 2,880 2,048
Texture mapping units 240 128
Render output processors 48 64
Pixel rate 50.2 GPixel/s 77.82 GPixel/s
Texture rate 200.6 GTexel/s 155.6 GTexel/s
Floating-point performance 4,815 GFLOPS 4,981 GFLOPS

memory

GeForce GTX TITAN ULTRA  vs
980 
Memory clock speed 1,502 MHz 1,753 MHz
Effective memory clock speed 6,008 MHz 7,012 MHz
Memory bus 384 bit 256 bit
Memory 6,144 MB 4,096 MB
Memory type GDDR5 GDDR5
Memory bandwidth 288.4 GB/s 224.4 GB/s

noise and power

TDP 275W 165W

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