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Differences What are the advantages of each

Front view of Radeon HD 8550

Reasons to consider the
AMD Radeon HD 8550

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Significantly lower TDP 60W vs 148W 2.5x lower TDP
Front view of GeForce GTX 970

Reasons to consider the
Nvidia GeForce GTX 970

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Much higher effective memory clock speed 7,012 MHz vs 1,600 MHz Around 4.5x higher effective memory clock speed
Much higher memory bandwidth 224.4 GB/s vs 25.6 GB/s More than 8.8x higher memory bandwidth
Significantly higher clock speed 1,050 MHz vs 650 MHz More than 60% higher clock speed
Significantly better floating-point performance 3,494 GFLOPS vs 624 GFLOPS More than 5.5x better floating-point performance
More memory 4,096 MB vs 1,024 MB 4x more memory
Much higher pixel rate 58.8 GPixel/s vs 5.2 GPixel/s More than 11.2x higher pixel rate
Significantly higher texture rate 109.2 GTexel/s vs 15.6 GTexel/s More than 7x higher texture rate
Many more render output processors 56 vs 8 48 more render output processors
Significantly more texture mapping units 104 vs 24 80 more texture mapping units
Much higher memory clock speed 1,753 MHz vs 800 MHz Around 2.2x higher memory clock speed
Significantly more shading units 1,664 vs 480 1184 more shading units
Wider memory bus 256 bit vs 128 bit 2x wider memory bus

Features Key features of the Radeon HD 8550  vs GeForce GTX 970 

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

Radeon HD 8550
25.6 GB/s
GeForce GTX 970
224.4 GB/s

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

Radeon HD 8550
5.2 GPixel/s
GeForce GTX 970
58.8 GPixel/s

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

Radeon HD 8550
15.6 GTexel/s
GeForce GTX 970
109.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8550
624 GFLOPS
GeForce GTX 970
3,494 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 8550  vs
GeForce GTX 970 
GPU brand AMD Nvidia
GPU name Turks GM204
Market Desktop Desktop
Clock speed 650 MHz 1,050 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 480 1,664
Texture mapping units 24 104
Render output processors 8 56
Pixel rate 5.2 GPixel/s 58.8 GPixel/s
Texture rate 15.6 GTexel/s 109.2 GTexel/s
Floating-point performance 624 GFLOPS 3,494 GFLOPS

memory

Radeon HD 8550  vs
GeForce GTX 970 
Memory clock speed 800 MHz 1,753 MHz
Effective memory clock speed 1,600 MHz 7,012 MHz
Memory bus 128 bit 256 bit
Memory 1,024 MB 4,096 MB
Memory type GDDR3 GDDR5
Memory bandwidth 25.6 GB/s 224.4 GB/s

noise and power

TDP 60W 148W

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