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Differences What are the advantages of each

Front view of Radeon R5 M330

Reasons to consider the
AMD Radeon R5 M330

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Higher clock speed 955 MHz vs 669 MHz Around 45% higher clock speed
Slightly more memory 2,048 MB vs 1,024 MB 2x more memory
Significantly lower TDP 18W vs 140W 7.8x 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
Higher memory bandwidth 105.98 GB/s vs 14.4 GB/s More than 7.2x higher memory bandwidth
More render output processors 32 vs 8 24 more render output processors
Higher pixel rate 21.4 GPixel/s vs 8.24 GPixel/s More than 2.5x higher pixel rate
Wider memory bus 512 bit vs 64 bit 8x wider memory bus
More shading units 640 vs 320 Twice as many shading units

Benchmarks Real world tests of Radeon R5 M330 vs HD 3850 X2

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Radeon R5 M330  vs HD 3850 X2 

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

Radeon R5 M330
14.4 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 M330
8.24 GPixel/s
Radeon HD 3850 X2
21.4 GPixel/s

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

Radeon R5 M330
20.6 GTexel/s
Radeon HD 3850 X2
21.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R5 M330
659.2 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

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