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Differences What are the advantages of each

Front view of GeForce GT 440

Reasons to consider the
Nvidia GeForce GT 440

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Higher clock speed 810 MHz vs 520 MHz More than 55% higher clock speed
Higher effective memory clock speed 1,800 MHz vs 1,000 MHz 80% higher effective memory clock speed
Higher memory bandwidth 28.8 GB/s vs 8 GB/s More than 3.5x higher memory bandwidth
Significantly higher memory clock speed 900 MHz vs 500 MHz 80% higher memory clock speed
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce 8400 GS PCI

Reasons to consider the

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Lower TDP 40W vs 65W Around 40% lower TDP

Features Key features of the GeForce GT 440  vs 8400 GS PCI 

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

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

GeForce GT 440
3.24 GPixel/s
GeForce 8400 GS PCI
2.08 GPixel/s

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

GeForce GT 440
12.96 GTexel/s
GeForce 8400 GS PCI
4.16 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 440
311.04 GFLOPS
GeForce 8400 GS PCI
39.36 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


GeForce GT 440  vs
8400 GS PCI 
GPU brand Nvidia Nvidia
GPU name GF108 G86
Market Desktop Desktop
Clock speed 810 MHz 520 MHz
Is dual GPU No No
Reference card None Nvidia GeForce 8400 GS PCI 520 MHz 512 MB

raw performance

Shading units 96 16
Texture mapping units 16 8
Render output processors 4 4
Pixel rate 3.24 GPixel/s 2.08 GPixel/s
Texture rate 12.96 GTexel/s 4.16 GTexel/s
Floating-point performance 311.04 GFLOPS 39.36 GFLOPS


GeForce GT 440  vs
8400 GS PCI 
Memory clock speed 900 MHz 500 MHz
Effective memory clock speed 1,800 MHz 1,000 MHz
Memory bus 128 bit 64 bit
Memory 1,024 MB 512 MB
Memory type DDR3 DDR3
Memory bandwidth 28.8 GB/s 8 GB/s

noise and power

TDP 65W 40W

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