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Differences What are the advantages of each

Front view of Radeon RX 455

Reasons to consider the
AMD Radeon RX 455

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Higher effective memory clock speed 6,500 MHz vs 4,500 MHz Around 45% higher effective memory clock speed
Higher clock speed 1,050 MHz vs 925 MHz Around 15% higher clock speed
Higher memory bandwidth 104 GB/s vs 72 GB/s Around 45% higher memory bandwidth
Significantly higher memory clock speed 1,625 MHz vs 1,125 MHz Around 45% higher memory clock speed
Front view of Radeon R7 450

Reasons to consider the
AMD Radeon R7 450

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Lower TDP 65W vs 100W 35% lower TDP

Features Key features of the Radeon RX 455  vs R7 450 

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

Radeon RX 455
104 GB/s
Radeon R7 450
72 GB/s

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

Radeon RX 455
16.8 GPixel/s
Radeon R7 450
14.8 GPixel/s

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

Radeon RX 455
50.4 GTexel/s
Radeon R7 450
29.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX 455
1,612.8 GFLOPS
Radeon R7 450
947.2 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


Radeon RX 455  vs
R7 450 
GPU name Tobago Cape Verde
Clock speed 1,050 MHz 925 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 768 512
Texture mapping units 48 32
Render output processors 16 16
Compute units 12 8
Pixel rate 16.8 GPixel/s 14.8 GPixel/s
Texture rate 50.4 GTexel/s 29.6 GTexel/s
Floating-point performance 1,612.8 GFLOPS 947.2 GFLOPS


Radeon RX 455  vs
R7 450 
Memory clock speed 1,625 MHz 1,125 MHz
Effective memory clock speed 6,500 MHz 4,500 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 104 GB/s 72 GB/s

noise and power

TDP 100W 65W


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