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Differences What are the advantages of each

Front view of Radeon HD 7790

Reasons to consider the
AMD Radeon HD 7790

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Much higher effective memory clock speed 6,000 MHz vs 2,100 MHz More than 2.8x higher effective memory clock speed
Significantly higher clock speed 1,000 MHz vs 650 MHz Around 55% higher clock speed
Better floating-point performance 1,792 GFLOPS vs 604.8 GFLOPS Around 3x better floating-point performance
More shading units 896 vs 216 680 more shading units
Significantly higher memory clock speed 1,500 MHz vs 1,050 MHz Around 45% higher memory clock speed
Significantly lower TDP 85W vs 171W 2x lower TDP
Front view of GeForce GTX 260 Core 216

Reasons to consider the
ZOTAC GeForce GTX 260 Core 216

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Higher memory bandwidth 117.6 GB/s vs 96 GB/s More than 20% higher memory bandwidth
More render output processors 28 vs 16 12 more render output processors
Wider memory bus 448 bit vs 128 bit 3.5x wider memory bus
More texture mapping units 72 vs 56 16 more texture mapping units

Features Key features of the Radeon HD 7790  vs GeForce GTX 260 Core 216 

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 HD 7790
16 GPixel/s
GeForce GTX 260 Core 216
18.2 GPixel/s

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

Radeon HD 7790
56 GTexel/s
GeForce GTX 260 Core 216
46.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 7790
1,792 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 7790  vs
GeForce GTX 260 Core 216 
GPU brand AMD Nvidia
GPU name Bonaire XT GT200 B3
Market Desktop Desktop
Clock speed 1,000 MHz 650 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GTX 260 Core 216 Rev. 2 576 MHz 896 MB

raw performance

Shading units 896 216
Texture mapping units 56 72
Render output processors 16 28
Pixel rate 16 GPixel/s 18.2 GPixel/s
Texture rate 56 GTexel/s 46.8 GTexel/s
Floating-point performance 1,792 GFLOPS 604.8 GFLOPS


Radeon HD 7790  vs
GeForce GTX 260 Core 216 
Memory clock speed 1,500 MHz 1,050 MHz
Effective memory clock speed 6,000 MHz 2,100 MHz
Memory bus 128 bit 448 bit
Memory 1,024 MB 896 MB
Memory type GDDR5 GDDR3
Memory bandwidth 96 GB/s 117.6 GB/s

noise and power

TDP 85W 171W


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