GeForce 9800 GTX vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which features GPU clock speed of 926 MHz, and 4096 MB of GDDR5 memory set to run at 1650 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
GeForce 9800 GTX		140 Watts
	Difference: 20 Watts (17%)

Memory Bandwidth

The Radeon RX 470 4GB should theoretically be much faster than the GeForce 9800 GTX in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 140800 (200%)

Texel Rate

The Radeon RX 470 4GB is a lot (approximately 174%) better at anisotropic filtering than the GeForce 9800 GTX. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
GeForce 9800 GTX		43200 Mtexels/sec
	Difference: 75328 (174%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 470 4GB is a better choice, by far. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 18832 (174%)

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 maximum amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.