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Differences What are the advantages of each

Front view of Radeon HD 7850

Reasons to consider the
AMD Radeon HD 7850

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GPUBoss is not aware of any important advantages of the AMD Radeon HD 7850 vs the Radeon HD 5770 X2.

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
Better floating-point performance 2,720 GFLOPS vs 1,761.3 GFLOPS Around 55% better floating-point performance
More shading units 1,600 vs 1,024 576 more shading units
More texture mapping units 80 vs 64 16 more texture mapping units
Slightly more compute units 20 vs 16 4 more compute units

Features Key features of the Radeon HD 7850  vs 5770 X2 

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

Radeon HD 7850
153.6 GB/s
Radeon HD 5770 X2
153.6 GB/s

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

Radeon HD 7850
27.52 GPixel/s
Radeon HD 5770 X2
27.2 GPixel/s

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

Radeon HD 7850
55 GTexel/s
Radeon HD 5770 X2
68 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 7850
1,761.3 GFLOPS
Radeon HD 5770 X2
2,720 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 7850  vs
5770 X2 
GPU name Pitcairn PRO Juniper
Market Desktop Desktop
Clock speed 860 MHz 850 MHz
Is dual GPU No Yes
Reference card None ATi Radeon HD 5770 X2 850 MHz 2 GB

raw performance

Shading units 1,024 1,600
Texture mapping units 64 80
Render output processors 32 32
Compute units 16 20
Pixel rate 27.52 GPixel/s 27.2 GPixel/s
Texture rate 55 GTexel/s 68 GTexel/s
Floating-point performance 1,761.3 GFLOPS 2,720 GFLOPS


Radeon HD 7850  vs
5770 X2 
Memory clock speed 1,200 MHz 1,200 MHz
Effective memory clock speed 4,800 MHz 4,800 MHz
Memory bus 256 bit 256 bit
Memory 2,048 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 153.6 GB/s 153.6 GB/s


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