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Differences What are the advantages of each

Front view of GeForce 8400 GS PCI

Reasons to consider the
SPARKLE GeForce 8400 GS PCI

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Higher memory clock speed 500 MHz vs 400 MHz 25% higher memory clock speed
Front view of GeForce 8400 GS

Reasons to consider the
Nvidia GeForce 8400 GS

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Slightly lower TDP 25W vs 40W Around 40% lower TDP

Features Key features of the GeForce 8400 GS PCI  vs GS 

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 8400 GS PCI
2.08 GPixel/s
GeForce 8400 GS
2.08 GPixel/s

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

GeForce 8400 GS PCI
4.16 GTexel/s
GeForce 8400 GS
4.16 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce 8400 GS PCI
39.36 GFLOPS
GeForce 8400 GS
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

gpu

GeForce 8400 GS PCI  vs
GS 
GPU brand Nvidia Nvidia
GPU name G86 GT218 B1
Market Desktop Desktop
Clock speed 520 MHz 520 MHz
Is dual GPU No No
Reference card Nvidia GeForce 8400 GS PCI 520 MHz 512 MB None

raw performance

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

memory

GeForce 8400 GS PCI  vs
GS 
Memory clock speed 500 MHz 400 MHz
Effective memory clock speed 1,000 MHz 800 MHz
Memory bus 64 bit 64 bit
Memory 512 MB 512 MB
Memory type DDR3 DDR2
Memory bandwidth 8 GB/s 6.4 GB/s

noise and power

TDP 40W 25W

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