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Differences What are the advantages of each

Front view of Radeon HD 9970

Reasons to consider the
AMD Radeon HD 9970

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Significantly better floating-point performance 8,192 GFLOPS vs 3,977 GFLOPS More than 2x better floating-point performance
Higher clock speed 1,000 MHz vs 863 MHz More than 15% higher clock speed
Many more shading units 4,096 vs 2,304 1792 more shading units
More memory 4,096 MB vs 3,072 MB Around 35% more memory
Higher pixel rate 64 GPixel/s vs 41.4 GPixel/s Around 55% higher pixel rate
Significantly more texture mapping units 256 vs 192 64 more texture mapping units
Higher memory bandwidth 307 GB/s vs 288.4 GB/s More than 5% higher memory bandwidth
More render output processors 64 vs 48 16 more render output processors
Slightly wider memory bus 512 bit vs 384 bit Around 35% wider memory bus
Front view of GeForce GTX 780

Reasons to consider the
Nvidia GeForce GTX 780

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Higher effective memory clock speed 6,008 MHz vs 5,000 MHz More than 20% higher effective memory clock speed
Higher memory clock speed 1,502 MHz vs 1,250 MHz More than 20% higher memory clock speed

Features Key features of the Radeon HD 9970  vs GeForce GTX 780 

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

Radeon HD 9970
307 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 HD 9970
64 GPixel/s
GeForce GTX 780
41.4 GPixel/s

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

Radeon HD 9970
168 GTexel/s
GeForce GTX 780
165.7 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 9970
8,192 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 HD 9970  vs
GeForce GTX 780 
GPU brand AMD Nvidia
GPU name Hawaii XT GK110
Market Desktop Desktop
Clock speed 1,000 MHz 863 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 4,096 2,304
Texture mapping units 256 192
Render output processors 64 48
Pixel rate 64 GPixel/s 41.4 GPixel/s
Texture rate 168 GTexel/s 165.7 GTexel/s
Floating-point performance 8,192 GFLOPS 3,977 GFLOPS

memory

Radeon HD 9970  vs
GeForce GTX 780 
Memory clock speed 1,250 MHz 1,502 MHz
Effective memory clock speed 5,000 MHz 6,008 MHz
Memory bus 512 bit 384 bit
Memory 4,096 MB 3,072 MB
Memory type GDDR5 GDDR5
Memory bandwidth 307 GB/s 288.4 GB/s

noise and power

TDP 255W 250W

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Comments

Showing 5 comments.
is it me or AMD fanboyz get hyped for Rumored crap just as much as Apple fanboyz do? 2 sides of same coin?
500$ PLEASE!!!!
September? $650? Pls
9970 wheeeere are you? :p
Sorry Nvidia, it's been great, but the next gen games are all Radeon optimized.
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