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Differences What are the advantages of each

Front view of Radeon HD 6850 X2

Reasons to consider the
Generic Radeon HD 6850 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Wider memory bus 512 bit vs 352 bit More than 45% wider memory bus
Front view of GeForce GTX 1080 Ti

Reasons to consider the
Nvidia GeForce GTX 1080 Ti

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Much better PassMark score 13,373 vs 2,534 More than 5.2x better PassMark score
Much higher clock speed 1,480 MHz vs 800 MHz 85% higher clock speed
Much higher effective memory clock speed 11,008 MHz vs 4,200 MHz More than 2.5x higher effective memory clock speed
Much better floating-point performance 11,340 GFLOPS vs 3,072 GFLOPS Around 3.8x better floating-point performance
Significantly more memory 11,264 MB vs 4,096 MB 2.8x more memory
Much higher memory bandwidth 484.4 GB/s vs 268.8 GB/s More than 80% higher memory bandwidth
Much higher texture rate 354.4 GTexel/s vs 76.8 GTexel/s More than 4.5x higher texture rate
Much higher pixel rate 139.2 GPixel/s vs 51.2 GPixel/s Around 2.8x higher pixel rate
Significantly more texture mapping units 224 vs 96 128 more texture mapping units
Significantly more shading units 3,584 vs 1,920 1664 more shading units
More render output processors 88 vs 64 24 more render output processors
Higher memory clock speed 1,376 MHz vs 1,050 MHz More than 30% higher memory clock speed

Benchmarks Real world tests of Radeon HD 6850 X2 vs GeForce GTX 1080 Ti

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Radeon HD 6850 X2  vs GeForce GTX 1080 Ti 

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

Radeon HD 6850 X2
268.8 GB/s
GeForce GTX 1080 Ti
484.4 GB/s

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

Radeon HD 6850 X2
51.2 GPixel/s
GeForce GTX 1080 Ti
139.2 GPixel/s

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

Radeon HD 6850 X2
76.8 GTexel/s
GeForce GTX 1080 Ti
354.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6850 X2
3,072 GFLOPS
GeForce GTX 1080 Ti
11,340 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


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