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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 256 MB 8x more memory
Lower TDP 19W vs 48W 2.5x lower TDP
Front view of Radeon HD 4650

Reasons to consider the
BIOSTAR Radeon HD 4650

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More texture mapping units 32 vs 8 24 more texture mapping units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus

Benchmarks Real world tests of Radeon R5 230 vs HD 4650

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon R5 230
1,093.3
Radeon HD 4650
1,732.76

Features Key features of the Radeon R5 230  vs HD 4650 

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

Radeon R5 230
10.7 GB/s
Radeon HD 4650
22.4 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 4650
4.8 GPixel/s

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

Radeon R5 230
5 GTexel/s
Radeon HD 4650
19.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R5 230
200 GFLOPS
Radeon HD 4650
384 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

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