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Differences What are the advantages of each

Front view of Radeon R5 M465

Reasons to consider the
AMD Radeon R5 M465

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Higher clock speed 1,000 MHz vs 700 MHz Around 45% higher clock speed
More memory 4,096 MB vs 256 MB 16x more memory
Higher memory clock speed 1,000 MHz vs 800 MHz 25% higher memory clock speed
Slightly more shading units 384 vs 120 264 more shading units
Front view of Radeon HD 2600 XT Mac

Reasons to consider the
ATi Radeon HD 2600 XT Mac

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Slightly wider memory bus 128 bit vs 64 bit 2x wider memory bus

Features Key features of the Radeon R5 M465  vs HD 2600 XT Mac 

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 R5 M465
8 GPixel/s
Radeon HD 2600 XT Mac
2.8 GPixel/s

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

Radeon R5 M465
24 GTexel/s
Radeon HD 2600 XT Mac
5.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R5 M465
768 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 R5 M465  vs
HD 2600 XT Mac 
GPU brand AMD ATI
GPU name Meso RV630
Clock speed 1,000 MHz 700 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 384 120
Texture mapping units 24 8
Render output processors 8 4
Compute units 6 3
Pixel rate 8 GPixel/s 2.8 GPixel/s
Texture rate 24 GTexel/s 5.6 GTexel/s
Floating-point performance 768 GFLOPS 168 GFLOPS

memory

Radeon R5 M465  vs
HD 2600 XT Mac 
Memory clock speed 1,000 MHz 800 MHz
Effective memory clock speed 2,000 MHz 1,600 MHz
Memory bus 64 bit 128 bit
Memory 4,096 MB 256 MB
Memory type DDR3 GDDR3
Memory bandwidth 16 GB/s 25.6 GB/s

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