GeForce 9800 GT 512MB vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which has a GPU core clock speed of 926 MHz, and 8192 MB of GDDR5 RAM running at 1650 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB		105 Watts
Radeon RX 470		120 Watts
	Difference: 15 Watts (14%)

Memory Bandwidth

Theoretically, the Radeon RX 470 should perform a lot faster than the GeForce 9800 GT 512MB overall. (explain)

Radeon RX 470		211200 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 153600 (267%)

Texel Rate

The Radeon RX 470 should be quite a bit (more or less 253%) better at texture filtering than the GeForce 9800 GT 512MB. (explain)

Radeon RX 470		118528 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 84928 (253%)

Pixel Rate

The Radeon RX 470 will be quite a bit (approximately 209%) faster with regards to anti-aliasing than the GeForce 9800 GT 512MB, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 470		29632 Mpixels/sec
GeForce 9800 GT 512MB		9600 Mpixels/sec
	Difference: 20032 (209%)

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 megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.