GeForce GTX 970M vs Radeon R9 Nano

Intro

Compare those specifications to the Radeon R9 Nano, which has GPU core speed of 1000 MHz, and 4096 MB of HBM memory running at 500 MHz through a 4096-bit bus. It also is comprised of 4096 SPUs, 256 TAUs, and 64 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 Nano		14918 points
GeForce GTX 970M		7520 points
	Difference: 7398 (98%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon R9 Nano		175 Watts
	Difference: 100 Watts (133%)

Memory Bandwidth

Performance-wise, the Radeon R9 Nano should in theory be much better than the GeForce GTX 970M in general. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 416000 (433%)

Texel Rate

The Radeon R9 Nano will be a lot (about 246%) better at anisotropic filtering than the GeForce GTX 970M. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 182080 (246%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 Nano is the winner, and very much so. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 970M		44352 Mpixels/sec
	Difference: 19648 (44%)

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 max amount of information (in units of MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.