GeForce GT 430 (OEM) vs Radeon R9 M275X

Intro

Compare that to the Radeon R9 M275X, which has GPU clock speed of 900 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
GeForce GT 430 (OEM)		60 Watts
	Difference: 10 Watts (20%)

Memory Bandwidth

The Radeon R9 M275X should theoretically perform much faster than the GeForce GT 430 (OEM) overall. (explain)

Radeon R9 M275X		72000 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 43200 (150%)

Texel Rate

The Radeon R9 M275X should be much (more or less 221%) faster with regards to texture filtering than the GeForce GT 430 (OEM). (explain)

Radeon R9 M275X		36000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 24800 (221%)

Pixel Rate

The Radeon R9 M275X is quite a bit (more or less 414%) more effective at FSAA than the GeForce GT 430 (OEM), and also capable of handling higher resolutions better. (explain)

Radeon R9 M275X		14400 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 11600 (414%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.