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Differences What are the advantages of each

Front view of GeForce GT 420

Reasons to consider the
Nvidia GeForce GT 420

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Higher clock speed 700 MHz vs 400 MHz 75% higher clock speed
Slightly higher effective memory clock speed 1,800 MHz vs 1,200 MHz 50% higher effective memory clock speed
Higher memory clock speed 900 MHz vs 600 MHz 50% higher memory clock speed
Front view of GeForce 9300M G

Reasons to consider the
Nvidia GeForce 9300M G

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Lower TDP 13W vs 50W 3.8x lower TDP

Benchmarks Real world tests of GeForce GT 420 vs 9300M G

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GT 420  vs 9300M G 

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

GeForce GT 420
28.8 GB/s
GeForce 9300M G
9.6 GB/s

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

GeForce GT 420
1.4 GPixel/s
GeForce 9300M G
1.6 GPixel/s

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

GeForce GT 420
2.8 GTexel/s
GeForce 9300M G
3.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 420
134.4 GFLOPS
GeForce 9300M G
25.6 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

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