GeForce 9800 GT 512MB vs Radeon R5 M230

Intro

Compare those specs to the Radeon R5 M230, which makes use of a 28 nm design. AMD has clocked the core speed at 780 MHz. The DDR3 RAM is set to run at a frequency of 1000 MHz on this particular model. It features 320 SPUs as well as 20 Texture Address Units and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 9800 GT 512MB will be 260% faster than the Radeon R5 M230 in general, due to its higher data rate. (explain)

GeForce 9800 GT 512MB		57600 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 41600 (260%)

Texel Rate

The GeForce 9800 GT 512MB should be much (about 115%) better at AF than the Radeon R5 M230. (explain)

GeForce 9800 GT 512MB		33600 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 18000 (115%)

Pixel Rate

The GeForce 9800 GT 512MB will be quite a bit (approximately 208%) more effective at FSAA than the Radeon R5 M230, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 9800 GT 512MB		9600 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 6480 (208%)

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: Bandwidth is the max amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.