GeForce GTX 285 1GB vs Radeon RX 570

Intro

Compare that to the Radeon RX 570, which comes with a clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit memory bus, and uses a 14 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 54 Watts (36%)

Memory Bandwidth

Performance-wise, the Radeon RX 570 should theoretically be quite a bit better than the GeForce GTX 285 1GB in general. (explain)

Radeon RX 570		229376 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 70400 (44%)

Texel Rate

The Radeon RX 570 should be a lot (approximately 188%) faster with regards to AF than the GeForce GTX 285 1GB. (explain)

Radeon RX 570		149504 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 97664 (188%)

Pixel Rate

The Radeon RX 570 will be quite a bit (about 80%) faster with regards to AA than the GeForce GTX 285 1GB, and capable of handling higher resolutions more effectively. (explain)

Radeon RX 570		37376 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 16640 (80%)

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 largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.