GeForce GT 430 1GB vs Radeon R5 M255

Intro

Compare all that to the Radeon R5 M255, which features a GPU core clock speed of 940 MHz, and 2048 MB of DDR3 memory running at 1000 MHz through a 64-bit bus. It also is comprised of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GT 430 1GB should theoretically be quite a bit faster than the Radeon R5 M255 in general. (explain)

GeForce GT 430 1GB		28800 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 12800 (80%)

Texel Rate

The Radeon R5 M255 is a lot (about 68%) better at AF than the GeForce GT 430 1GB. (explain)

Radeon R5 M255		18800 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 7600 (68%)

Pixel Rate

The Radeon R5 M255 is quite a bit (about 169%) faster with regards to full screen anti-aliasing than the GeForce GT 430 1GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

Radeon R5 M255		7520 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 4720 (169%)

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 (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.