GeForce 9800 GTX+ vs Radeon R5 M230

Intro

Compare those specifications to the Radeon R5 M230, which comes with GPU clock speed of 780 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 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX+ will be 340% faster than the Radeon R5 M230 overall, because of its higher data rate. (explain)

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

Texel Rate

The GeForce 9800 GTX+ should be a lot (more or less 203%) faster with regards to texture filtering than the Radeon R5 M230. (explain)

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

Pixel Rate

The GeForce 9800 GTX+ should be quite a bit (about 278%) more effective at AA than the Radeon R5 M230, and also should be capable of handling higher screen resolutions more effectively. (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 information (measured in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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