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Differences What are the advantages of each

Front view of Radeon HD 3850 AGP

Reasons to consider the
HIS Radeon HD 3850 AGP

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Higher memory bandwidth 58.24 GB/s vs 26.56 GB/s Around 2.2x higher memory bandwidth
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Slightly higher memory clock speed 910 MHz vs 830 MHz Around 10% higher memory clock speed
Front view of Radeon HD 3690

Reasons to consider the
ATi Radeon HD 3690

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GPUBoss is not aware of any important advantages of the ATi Radeon HD 3690 vs the HIS Radeon HD 3850 AGP.

Features Key features of the Radeon HD 3850 AGP  vs 3690 

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

Radeon HD 3850 AGP
58.24 GB/s
Radeon HD 3690
26.56 GB/s

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

Radeon HD 3850 AGP
11.52 GPixel/s
Radeon HD 3690
10.72 GPixel/s

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

Radeon HD 3850 AGP
11.52 GTexel/s
Radeon HD 3690
10.72 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 3850 AGP
460.8 GFLOPS
Radeon HD 3690
428.8 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

gpu

Radeon HD 3850 AGP  vs
3690 
GPU brand ATI ATI
GPU name RV670 RV670
Market Desktop Desktop
Clock speed 720 MHz 670 MHz
Is dual GPU No No
Reference card ATi Radeon HD 3850 AGP 668 MHz 512 MB None

raw performance

Shading units 320 320
Texture mapping units 16 16
Render output processors 16 16
Compute units 4 4
Pixel rate 11.52 GPixel/s 10.72 GPixel/s
Texture rate 11.52 GTexel/s 10.72 GTexel/s
Floating-point performance 460.8 GFLOPS 428.8 GFLOPS

memory

Radeon HD 3850 AGP  vs
3690 
Memory clock speed 910 MHz 830 MHz
Effective memory clock speed 1,820 MHz 1,660 MHz
Memory bus 256 bit 128 bit
Memory 512 MB 256 MB
Memory type GDDR3 GDDR3
Memory bandwidth 58.24 GB/s 26.56 GB/s

noise and power

TDP 75W 75W

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