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Differences What are the advantages of each

Front view of Radeon R9 280

Reasons to consider the
AMD Radeon R9 280

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Significantly higher memory bandwidth 240 GB/s vs 153.6 GB/s More than 55% higher memory bandwidth
More memory 3,072 MB vs 2,048 MB 50% more memory
Higher texture rate 104.5 GTexel/s vs 68 GTexel/s Around 55% higher texture rate
Better floating-point performance 3,344 GFLOPS vs 2,720 GFLOPS Around 25% better floating-point performance
More texture mapping units 112 vs 80 32 more texture mapping units
Wider memory bus 384 bit vs 256 bit 50% wider memory bus
More compute units 28 vs 20 8 more compute units
Slightly more shading units 1,792 vs 1,600 192 more shading units
Lower TDP 200W vs 228W More than 10% lower TDP
Front view of Radeon HD 5870 Eyefinity 6

Reasons to consider the
ATi Radeon HD 5870 Eyefinity 6

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GPUBoss is not aware of any important advantages of the ATi Radeon HD 5870 Eyefinity 6 vs the AMD Radeon R9 280.

Features Key features of the Radeon R9 280  vs HD 5870 Eyefinity 6 

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 R9 280
29.86 GPixel/s

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

Radeon R9 280
104.5 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R9 280
3,344 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


Radeon R9 280  vs
HD 5870 Eyefinity 6 
GPU name Tahiti Cypress
Market Desktop Desktop
Clock speed 827 MHz 850 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 1,792 1,600
Texture mapping units 112 80
Render output processors 32 32
Compute units 28 20
Pixel rate 29.86 GPixel/s 27.2 GPixel/s
Texture rate 104.5 GTexel/s 68 GTexel/s
Floating-point performance 3,344 GFLOPS 2,720 GFLOPS


Radeon R9 280  vs
HD 5870 Eyefinity 6 
Memory clock speed 1,250 MHz 1,200 MHz
Effective memory clock speed 5,000 MHz 4,800 MHz
Memory bus 384 bit 256 bit
Memory 3,072 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 240 GB/s 153.6 GB/s

noise and power

TDP 200W 228W


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