GeForce GTX 970M vs Radeon RX 470 4GB

Intro

Compare all of that to the Radeon RX 470 4GB, which comes with a core clock frequency of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also features a 256-bit bus, and makes use of a 14 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 45 Watts (60%)

Memory Bandwidth

The Radeon RX 470 4GB should in theory be quite a bit faster than the GeForce GTX 970M in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 115200 (120%)

Texel Rate

The Radeon RX 470 4GB is much (about 60%) better at texture filtering than the GeForce GTX 970M. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 44608 (60%)

Pixel Rate

The GeForce GTX 970M will be much (approximately 50%) faster with regards to FSAA than the Radeon RX 470 4GB, and also will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 14720 (50%)

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 max amount of data (counted in megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed 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 handling 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 the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.