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Differences What are the advantages of each

Front view of Radeon HD 7330M

Reasons to consider the
AMD Radeon HD 7330M

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Lower TDP 5W vs 45W 9x lower TDP
Front view of GeForce GT 740M

Reasons to consider the
Nvidia GeForce GT 740M

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Significantly higher clock speed 810 MHz vs 500 MHz More than 60% higher clock speed
More memory 2,048 MB vs 1,024 MB 2x more memory
Better floating-point performance 622.1 GFLOPS vs 80 GFLOPS More than 7.8x better floating-point performance
Higher texture rate 25.92 GTexel/s vs 4 GTexel/s Around 6.5x higher texture rate
More render output processors 16 vs 4 12 more render output processors
More texture mapping units 32 vs 8 24 more texture mapping units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
More shading units 384 vs 80 304 more shading units
Higher memory clock speed 901 MHz vs 800 MHz Around 15% higher memory clock speed

Features Key features of the Radeon HD 7330M  vs GeForce GT 740M 

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

Radeon HD 7330M
12.8 GB/s
GeForce GT 740M
28.83 GB/s

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

Radeon HD 7330M
2 GPixel/s
GeForce GT 740M
6.48 GPixel/s

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

Radeon HD 7330M
4 GTexel/s
GeForce GT 740M
25.92 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 7330M
80 GFLOPS
GeForce GT 740M
622.1 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 7330M  vs
GeForce GT 740M 
GPU brand AMD Nvidia
GPU name Robson GK107
Market Laptop Laptop
Clock speed 500 MHz 810 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 80 384
Texture mapping units 8 32
Render output processors 4 16
Pixel rate 2 GPixel/s 6.48 GPixel/s
Texture rate 4 GTexel/s 25.92 GTexel/s
Floating-point performance 80 GFLOPS 622.1 GFLOPS

memory

Radeon HD 7330M  vs
GeForce GT 740M 
Memory clock speed 800 MHz 901 MHz
Effective memory clock speed 1,600 MHz 1,802 MHz
Memory bus 64 bit 128 bit
Memory 1,024 MB 2,048 MB
Memory type DDR3 DDR3
Memory bandwidth 12.8 GB/s 28.83 GB/s

noise and power

TDP 5W 45W

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