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Differences What are the advantages of each

Front view of Radeon HD 5770 X2

Reasons to consider the
Generic Radeon HD 5770 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Significantly higher memory bandwidth 153.6 GB/s vs 76.8 GB/s 2x higher memory bandwidth
Better floating-point performance 2,720 GFLOPS vs 1,360 GFLOPS 2x better floating-point performance
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher texture rate 68 GTexel/s vs 34 GTexel/s 2x higher texture rate
More shading units 1,600 vs 800 Twice as many shading units
Higher pixel rate 27.2 GPixel/s vs 13.6 GPixel/s 2x higher pixel rate
More render output processors 32 vs 16 Twice as many render output processors
More texture mapping units 80 vs 40 Twice as many texture mapping units
More compute units 20 vs 10 Twice as many compute units
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Front view of Radeon HD 5770

Reasons to consider the
ATi Radeon HD 5770

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GPUBoss is not aware of any important advantages of the ATi Radeon HD 5770 vs the Radeon HD 5770 X2.

Features Key features of the Radeon HD 5770 X2  vs 5770 

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

Radeon HD 5770 X2
153.6 GB/s
Radeon HD 5770
76.8 GB/s

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

Radeon HD 5770 X2
27.2 GPixel/s
Radeon HD 5770
13.6 GPixel/s

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

Radeon HD 5770 X2
68 GTexel/s
Radeon HD 5770
34 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5770 X2
2,720 GFLOPS
Radeon HD 5770
1,360 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 HD 5770 X2  vs
GPU name Juniper Juniper
Market Desktop Desktop
Clock speed 850 MHz 850 MHz
Is dual GPU Yes No
Reference card ATi Radeon HD 5770 X2 850 MHz 2 GB None

raw performance

Shading units 1,600 800
Texture mapping units 80 40
Render output processors 32 16
Compute units 20 10
Pixel rate 27.2 GPixel/s 13.6 GPixel/s
Texture rate 68 GTexel/s 34 GTexel/s
Floating-point performance 2,720 GFLOPS 1,360 GFLOPS


Radeon HD 5770 X2  vs
Memory clock speed 1,200 MHz 1,200 MHz
Effective memory clock speed 4,800 MHz 4,800 MHz
Memory bus 256 bit 128 bit
Memory 2,048 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 153.6 GB/s 76.8 GB/s


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