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Differences What are the advantages of each

Front view of Radeon HD 8970

Reasons to consider the
AMD Radeon HD 8970

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Higher memory bandwidth 288 GB/s vs 224.4 GB/s Around 30% higher memory bandwidth
Wider memory bus 384 bit vs 256 bit 50% wider memory bus
Higher memory clock speed 1,500 MHz vs 1,251 MHz Around 20% higher memory clock speed
Front view of GeForce GTX 1080

Reasons to consider the
Nvidia GeForce GTX 1080

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Much higher clock speed 1,607 MHz vs 1,050 MHz Around 55% higher clock speed
Much higher effective memory clock speed 10,008 MHz vs 6,000 MHz More than 65% higher effective memory clock speed
Significantly more memory 8,192 MB vs 3,072 MB Around 2.8x more memory
Significantly better floating-point performance 8,228 GFLOPS vs 5,376 GFLOPS Around 55% better floating-point performance
Significantly higher pixel rate 102.8 GPixel/s vs 50.4 GPixel/s More than 2x higher pixel rate
Significantly higher texture rate 257.1 GTexel/s vs 168 GTexel/s Around 55% higher texture rate
More render output processors 64 vs 48 16 more render output processors
More texture mapping units 160 vs 128 32 more texture mapping units

Features Key features of the Radeon HD 8970  vs GeForce GTX 1080 

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

Radeon HD 8970
288 GB/s
GeForce GTX 1080
224.4 GB/s

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

Radeon HD 8970
50.4 GPixel/s
GeForce GTX 1080
102.8 GPixel/s

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

Radeon HD 8970
168 GTexel/s
GeForce GTX 1080
257.1 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8970
5,376 GFLOPS
GeForce GTX 1080
8,228 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

Radeon HD 8970  vs
GeForce GTX 1080 
GPU brand AMD Nvidia
GPU name Curaçao XT GP104
Market Desktop Desktop
Clock speed 1,050 MHz 1,607 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 2,560 2,560
Texture mapping units 128 160
Render output processors 48 64
Pixel rate 50.4 GPixel/s 102.8 GPixel/s
Texture rate 168 GTexel/s 257.1 GTexel/s
Floating-point performance 5,376 GFLOPS 8,228 GFLOPS

memory

Radeon HD 8970  vs
GeForce GTX 1080 
Memory clock speed 1,500 MHz 1,251 MHz
Effective memory clock speed 6,000 MHz 10,008 MHz
Memory bus 384 bit 256 bit
Memory 3,072 MB 8,192 MB
Memory type GDDR5 GDDR5
Memory bandwidth 288 GB/s 224.4 GB/s

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