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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

Reasons to consider the
Nvidia GeForce GTX 780

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Higher texture rate 165.7 GTexel/s vs 100.8 GTexel/s Around 65% higher texture rate
Significantly more texture mapping units 192 vs 112 80 more texture mapping units
Higher pixel rate 41.4 GPixel/s vs 28.8 GPixel/s Around 45% higher pixel rate
Slightly better floating-point performance 3,977 GFLOPS vs 3,226 GFLOPS Around 25% better floating-point performance
More render output processors 48 vs 32 16 more render output processors
More shading units 2,304 vs 1,792 512 more shading units
Higher memory clock speed 1,502 MHz vs 1,375 MHz Around 10% higher memory clock speed

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

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

Radeon Sky 700
264 GB/s
GeForce GTX 780
288.4 GB/s

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
41.4 GPixel/s

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

Radeon Sky 700
100.8 GTexel/s
GeForce GTX 780
165.7 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon Sky 700
3,226 GFLOPS
GeForce GTX 780
3,977 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 
GPU brand AMD Nvidia
GPU name Tahiti GK110
Clock speed 900 MHz 863 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 1,792 2,304
Texture mapping units 112 192
Render output processors 32 48
Pixel rate 28.8 GPixel/s 41.4 GPixel/s
Texture rate 100.8 GTexel/s 165.7 GTexel/s
Floating-point performance 3,226 GFLOPS 3,977 GFLOPS

memory

Radeon Sky 700  vs
GeForce GTX 780 
Memory clock speed 1,375 MHz 1,502 MHz
Effective memory clock speed 5,500 MHz 6,008 MHz
Memory bus 384 bit 384 bit
Memory 6,144 MB 3,072 MB
Memory type GDDR5 GDDR5
Memory bandwidth 264 GB/s 288.4 GB/s

noise and power

TDP 225W 250W

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