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Differences What are the advantages of each

Front view of Radeon RX 480

Reasons to consider the
AMD Radeon RX 480

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Much higher effective memory clock speed 8,000 MHz vs 1,600 MHz 5x higher effective memory clock speed
Much higher memory bandwidth 256 GB/s vs 25.6 GB/s 10x higher memory bandwidth
Much more memory 8,192 MB vs 512 MB 16x more memory
Much higher clock speed 1,120 MHz vs 550 MHz More than 2x higher clock speed
Much better floating-point performance 5,834 GFLOPS vs 89.6 GFLOPS More than 65x better floating-point performance
Much higher texture rate 182.3 GTexel/s vs 8.8 GTexel/s Around 20.8x higher texture rate
Many more shading units 2,304 vs 32 2272 more shading units
Many more texture mapping units 144 vs 16 128 more texture mapping units
Significantly higher pixel rate 40.5 GPixel/s vs 4.4 GPixel/s Around 9.2x higher pixel rate
Much higher memory clock speed 2,000 MHz vs 800 MHz 2.5x higher memory clock speed
Significantly more render output processors 32 vs 8 24 more render output processors
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Front view of GeForce GT 120 Mac

Reasons to consider the
Nvidia GeForce GT 120 Mac

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Significantly lower TDP 50W vs 150W 3x lower TDP

Features Key features of the Radeon RX 480  vs GeForce GT 120 Mac 

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

Radeon RX 480
256 GB/s
GeForce GT 120 Mac
25.6 GB/s

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

Radeon RX 480
40.5 GPixel/s
GeForce GT 120 Mac
4.4 GPixel/s

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

Radeon RX 480
182.3 GTexel/s
GeForce GT 120 Mac
8.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX 480
5,834 GFLOPS
GeForce GT 120 Mac
89.6 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 480  vs
GeForce GT 120 Mac 
GPU brand AMD Nvidia
GPU name Ellesmere G96 C1
Market Desktop Desktop
Clock speed 1,120 MHz 550 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 2,304 32
Texture mapping units 144 16
Render output processors 32 8
Pixel rate 40.5 GPixel/s 4.4 GPixel/s
Texture rate 182.3 GTexel/s 8.8 GTexel/s
Floating-point performance 5,834 GFLOPS 89.6 GFLOPS

memory

Radeon RX 480  vs
GeForce GT 120 Mac 
Memory clock speed 2,000 MHz 800 MHz
Effective memory clock speed 8,000 MHz 1,600 MHz
Memory bus 256 bit 128 bit
Memory 8,192 MB 512 MB
Memory type GDDR5 GDDR3
Memory bandwidth 256 GB/s 25.6 GB/s

noise and power

TDP 150W 50W

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