GeForce GT 430 vs Radeon R9 M275X

Intro

Compare those specs to the Radeon R9 M275X, which uses a 28 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 memory runs at a frequency of 1125 MHz on this model. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the Radeon R9 M275X will be 150% quicker than the GeForce GT 430 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon R9 M275X will be much (approximately 221%) more effective at anisotropic filtering than the GeForce GT 430. (explain)

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

Pixel Rate

The Radeon R9 M275X will be a lot (about 414%) more effective at AA than the GeForce GT 430, and also should be able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 M275X		14400 Mpixels/sec
GeForce GT 430		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 information (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.