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Differences What are the advantages of each

Front view of Radeon HD 6870 1600SP

Reasons to consider the
Sapphire Radeon HD 6870 1600SP

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Higher memory bandwidth 134.4 GB/s vs 48.06 GB/s More than 2.8x higher memory bandwidth
Better floating-point performance 2,880 GFLOPS vs 1,127 GFLOPS More than 2.5x better floating-point performance
More shading units 1,600 vs 384 1216 more shading units
Higher pixel rate 28.8 GPixel/s vs 11.74 GPixel/s Around 2.5x higher pixel rate
More render output processors 32 vs 8 24 more render output processors
More texture mapping units 80 vs 24 56 more texture mapping units
Higher texture rate 72 GTexel/s vs 35.23 GTexel/s More than 2x higher texture rate
Wider memory bus 256 bit vs 64 bit 4x wider memory bus
Front view of GeForce GT 1030

Reasons to consider the
Nvidia GeForce GT 1030

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Significantly higher clock speed 1,227 MHz vs 900 MHz More than 35% higher clock speed
Higher effective memory clock speed 6,008 MHz vs 4,200 MHz Around 45% higher effective memory clock speed
Slightly more memory 2,048 MB vs 1,024 MB 2x more memory
Higher memory clock speed 1,502 MHz vs 1,050 MHz Around 45% higher memory clock speed
Significantly lower TDP 30W vs 175W 5.8x lower TDP

Features Key features of the Radeon HD 6870 1600SP  vs GeForce GT 1030 

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

GeForce GT 1030
48.06 GB/s

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

Radeon HD 6870 1600SP
28.8 GPixel/s
GeForce GT 1030
11.74 GPixel/s

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

Radeon HD 6870 1600SP
72 GTexel/s
GeForce GT 1030
35.23 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6870 1600SP
2,880 GFLOPS
GeForce GT 1030
1,127 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 6870 1600SP  vs
GeForce GT 1030 
GPU brand AMD Nvidia
GPU name Cypress GP108
Clock speed 900 MHz 1,227 MHz
Is dual GPU No No
Reference card AMD Radeon HD 6870 1600SP Edition 850 MHz 1 GB None

raw performance

Shading units 1,600 384
Texture mapping units 80 24
Render output processors 32 8
Pixel rate 28.8 GPixel/s 11.74 GPixel/s
Texture rate 72 GTexel/s 35.23 GTexel/s
Floating-point performance 2,880 GFLOPS 1,127 GFLOPS

memory

Radeon HD 6870 1600SP  vs
GeForce GT 1030 
Memory clock speed 1,050 MHz 1,502 MHz
Effective memory clock speed 4,200 MHz 6,008 MHz
Memory bus 256 bit 64 bit
Memory 1,024 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 134.4 GB/s 48.06 GB/s

noise and power

TDP 175W 30W

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