GeForce 9800 GT 512MB vs Radeon R5 M230

Intro

Compare those specs to the Radeon R5 M230, which features a clock frequency of 780 MHz and a DDR3 memory speed of 1000 MHz. It also uses a 64-bit memory bus, and uses a 28 nm design. It is comprised of 320 SPUs, 20 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 9800 GT 512MB, in theory, should be quite a bit faster than the Radeon R5 M230 overall. (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 (approximately 115%) better at texture filtering 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 (more or less 208%) better at AA than the Radeon R5 M230, and also should be capable of handling higher resolutions while still performing well. (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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units of the card by the core 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 maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.