GeForce 9800 GTX+ vs Radeon R5 M230

Intro

Compare those specs to the Radeon R5 M230, which comes with a core clock frequency of 780 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 64-bit memory bus, and uses a 28 nm design. It features 320 SPUs, 20 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 9800 GTX+ should theoretically be quite a bit faster than the Radeon R5 M230 overall. (explain)

GeForce 9800 GTX+		70400 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 54400 (340%)

Texel Rate

The GeForce 9800 GTX+ should be much (more or less 203%) more effective at anisotropic filtering than the Radeon R5 M230. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 31632 (203%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 9800 GTX+ is the winner, by a large margin. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 8688 (278%)

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 maximum amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 texture map elements (texels) that are applied in one second. This figure is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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.