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Differences What are the advantages of each

Front view of Radeon R5 230

Reasons to consider the
Sapphire Radeon R5 230

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More memory 2,048 MB vs 1,024 MB 2x more memory
Significantly lower TDP 19W vs 140W 7.4x lower TDP
Front view of Radeon HD 3850 X2

Reasons to consider the
ATi Radeon HD 3850 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Significantly higher memory bandwidth 105.98 GB/s vs 10.7 GB/s Around 10x higher memory bandwidth
Much wider memory bus 512 bit vs 64 bit 8x wider memory bus
Significantly more render output processors 32 vs 4 28 more render output processors
Higher pixel rate 21.4 GPixel/s vs 2.5 GPixel/s More than 8.5x higher pixel rate
Better floating-point performance 856.4 GFLOPS vs 200 GFLOPS More than 4.2x better floating-point performance
Slightly higher effective memory clock speed 1,656 MHz vs 1,334 MHz Around 25% higher effective memory clock speed
More shading units 640 vs 160 480 more shading units
Slightly higher texture rate 21.4 GTexel/s vs 5 GTexel/s More than 4.2x higher texture rate
More texture mapping units 32 vs 8 24 more texture mapping units
More compute units 8 vs 2 6 more compute units
Higher memory clock speed 828 MHz vs 667 MHz Around 25% higher memory clock speed

Features Key features of the Radeon R5 230  vs HD 3850 X2 

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

Radeon R5 230
10.7 GB/s
Radeon HD 3850 X2
105.98 GB/s

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

Radeon R5 230
2.5 GPixel/s
Radeon HD 3850 X2
21.4 GPixel/s

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

Radeon R5 230
5 GTexel/s
Radeon HD 3850 X2
21.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R5 230
200 GFLOPS
Radeon HD 3850 X2
856.4 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 R5 230  vs
HD 3850 X2 
GPU brand AMD ATI
GPU name Caicos RV670
Market Desktop Desktop
Clock speed 625 MHz 669 MHz
Is dual GPU No Yes
Reference card AMD Radeon R5 230 625 MHz 1 GB None

raw performance

Shading units 160 640
Texture mapping units 8 32
Render output processors 4 32
Compute units 2 8
Pixel rate 2.5 GPixel/s 21.4 GPixel/s
Texture rate 5 GTexel/s 21.4 GTexel/s
Floating-point performance 200 GFLOPS 856.4 GFLOPS

memory

Radeon R5 230  vs
HD 3850 X2 
Memory clock speed 667 MHz 828 MHz
Effective memory clock speed 1,334 MHz 1,656 MHz
Memory bus 64 bit 512 bit
Memory 2,048 MB 1,024 MB
Memory type DDR3 GDDR3
Memory bandwidth 10.7 GB/s 105.98 GB/s

noise and power

TDP 19W 140W

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