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Differences What are the advantages of each

Front view of Radeon Sky 700

Reasons to consider the
AMD Radeon Sky 700

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More memory 6,144 MB vs 3,072 MB 2x more memory
Lower TDP 225W vs 250W 10% lower TDP
Front view of GeForce GTX 780 Ti

Reasons to consider the
Nvidia GeForce GTX 780 Ti

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Significantly higher texture rate 210 GTexel/s vs 100.8 GTexel/s More than 2x higher texture rate
Higher effective memory clock speed 7,000 MHz vs 5,500 MHz More than 25% higher effective memory clock speed
Higher memory bandwidth 336 GB/s vs 264 GB/s More than 25% higher memory bandwidth
Significantly more texture mapping units 240 vs 112 128 more texture mapping units
Better floating-point performance 5,040 GFLOPS vs 3,226 GFLOPS More than 55% better floating-point performance
Higher pixel rate 52.5 GPixel/s vs 28.8 GPixel/s More than 80% higher pixel rate
More shading units 2,880 vs 1,792 1088 more shading units
More render output processors 48 vs 32 16 more render output processors
Higher memory clock speed 1,752 MHz vs 1,375 MHz More than 25% higher memory clock speed

Features Key features of the Radeon Sky 700  vs GeForce GTX 780 Ti 

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

Radeon Sky 700
28.8 GPixel/s
GeForce GTX 780 Ti
52.5 GPixel/s

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

Radeon Sky 700
100.8 GTexel/s
GeForce GTX 780 Ti
210 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon Sky 700
3,226 GFLOPS
GeForce GTX 780 Ti
5,040 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 Sky 700  vs
GeForce GTX 780 Ti 
GPU brand AMD Nvidia
GPU name Tahiti GK110B
Clock speed 900 MHz 875 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 1,792 2,880
Texture mapping units 112 240
Render output processors 32 48
Pixel rate 28.8 GPixel/s 52.5 GPixel/s
Texture rate 100.8 GTexel/s 210 GTexel/s
Floating-point performance 3,226 GFLOPS 5,040 GFLOPS

memory

Radeon Sky 700  vs
GeForce GTX 780 Ti 
Memory clock speed 1,375 MHz 1,752 MHz
Effective memory clock speed 5,500 MHz 7,000 MHz
Memory bus 384 bit 384 bit
Memory 6,144 MB 3,072 MB
Memory type GDDR5 GDDR5
Memory bandwidth 264 GB/s 336 GB/s

noise and power

TDP 225W 250W

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