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Differences What are the advantages of each

Front view of Radeon R9 290X Battlefield 4

Reasons to consider the
AMD Radeon R9 290X Battlefield 4

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Slightly more memory 4,096 MB vs 3,072 MB Around 35% more memory
Front view of GeForce GTX 780 Ti

Reasons to consider the
Nvidia GeForce GTX 780 Ti

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Higher effective memory clock speed 7,000 MHz vs 5,000 MHz 40% higher effective memory clock speed
Slightly higher clock speed 875 MHz vs 800 MHz Around 10% higher clock speed
Higher pixel rate 52.5 GPixel/s vs 35.2 GPixel/s Around 50% higher pixel rate
More texture mapping units 240 vs 176 64 more texture mapping units
Significantly higher memory clock speed 1,752 MHz vs 1,250 MHz More than 40% higher memory clock speed

Features Key features of the Radeon R9 290X Battlefield 4  vs GeForce GTX 780 Ti 

effective memory clock speed Frequency at which memory can be read from and written to

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

GeForce GTX 780 Ti
52.5 GPixel/s

floating point performance How fast the gpu can crunch numbers

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

render output processors GPU commponents responsible for transform pixels as they flow between memory buffers

Specifications Full list of technical specs

gpu

Radeon R9 290X Battlefield 4  vs
GeForce GTX 780 Ti 
GPU brand AMD Nvidia
GPU name Hawaii GK110B
Clock speed 800 MHz 875 MHz
Turbo clock speed 1,000 MHz 1,020 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 2,816 2,880
Texture mapping units 176 240
Render output processors 44 48
Pixel rate 35.2 GPixel/s 52.5 GPixel/s
Floating-point performance 4,506 GFLOPS 5,040 GFLOPS

memory

Radeon R9 290X Battlefield 4  vs
GeForce GTX 780 Ti 
Memory clock speed 1,250 MHz 1,752 MHz
Effective memory clock speed 5,000 MHz 7,000 MHz
Memory bus 512 bit 384 bit
Memory 4,096 MB 3,072 MB
Memory type GDDR5 GDDR5

noise and power

TDP 250W 250W

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