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Differences What are the advantages of each

Front view of Radeon RX 570

Reasons to consider the
AMD Radeon RX 570

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Much higher clock speed 1,168 MHz vs 650 MHz Around 80% higher clock speed
Much higher effective memory clock speed 7,000 MHz vs 1,600 MHz Around 4.5x higher effective memory clock speed
Significantly higher memory bandwidth 224 GB/s vs 25.6 GB/s 8.8x higher memory bandwidth
Significantly better floating-point performance 5,095 GFLOPS vs 624 GFLOPS Around 8.2x better floating-point performance
Significantly higher texture rate 159.2 GTexel/s vs 15.6 GTexel/s Around 10.2x higher texture rate
More memory 4,096 MB vs 1,024 MB 4x more memory
Higher pixel rate 39.81 GPixel/s vs 5.2 GPixel/s Around 7.8x higher pixel rate
Significantly more texture mapping units 128 vs 24 104 more texture mapping units
Significantly more shading units 2,048 vs 480 1568 more shading units
Much higher memory clock speed 1,750 MHz vs 800 MHz Around 2.2x higher memory clock speed
Significantly more compute units 32 vs 6 26 more compute units
More render output processors 32 vs 8 24 more render output processors
Front view of Radeon HD 8550

Reasons to consider the
AMD Radeon HD 8550

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Lower TDP 60W vs 120W 2x lower TDP

Features Key features of the Radeon RX 570  vs HD 8550 

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

Radeon RX 570
224 GB/s
Radeon HD 8550
25.6 GB/s

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

Radeon RX 570
39.81 GPixel/s
Radeon HD 8550
5.2 GPixel/s

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

Radeon RX 570
159.2 GTexel/s
Radeon HD 8550
15.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX 570
5,095 GFLOPS
Radeon HD 8550
624 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 RX 570  vs
HD 8550 
GPU brand AMD AMD
GPU name Polaris 20 Turks
Clock speed 1,168 MHz 650 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 2,048 480
Texture mapping units 128 24
Render output processors 32 8
Compute units 32 6
Pixel rate 39.81 GPixel/s 5.2 GPixel/s
Texture rate 159.2 GTexel/s 15.6 GTexel/s
Floating-point performance 5,095 GFLOPS 624 GFLOPS

memory

Radeon RX 570  vs
HD 8550 
Memory clock speed 1,750 MHz 800 MHz
Effective memory clock speed 7,000 MHz 1,600 MHz
Memory bus 256 bit 128 bit
Memory 4,096 MB 1,024 MB
Memory type GDDR5 GDDR3
Memory bandwidth 224 GB/s 25.6 GB/s

noise and power

TDP 120W 60W

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