GeForce GT 430 (OEM) vs Radeon R9 M275X

Intro

Compare those specs to the Radeon R9 M275X, which makes use of a 28 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 RAM works at a frequency of 1125 MHz on this specific model. It features 640 SPUs along with 40 TAUs 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

In theory, the Radeon R9 M275X will be 150% faster than the GeForce GT 430 (OEM) overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon R9 M275X is a lot (about 221%) better at AF 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

If using a high screen resolution is important to you, then the Radeon R9 M275X is a better choice, and very much so. (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 largest amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.