GeForce GTX 860M vs Radeon R9 Nano

Intro

Compare all that to the Radeon R9 Nano, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The HBM RAM is set to run at a speed of 500 MHz on this particular card. It features 4096 SPUs along with 256 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

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 860M		4340 points
	Difference: 10578 (244%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon R9 Nano		175 Watts
	Difference: 130 Watts (289%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 Nano should be 700% quicker than the GeForce GTX 860M overall, because of its higher bandwidth. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 448000 (700%)

Texel Rate

The Radeon R9 Nano will be much (approximately 235%) better at anisotropic filtering than the GeForce GTX 860M. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 860M		76512 Mtexels/sec
	Difference: 179488 (235%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 Nano is superior to the GeForce GTX 860M, by far. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 51248 (402%)

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 information (counted in megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core 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 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 colour ROPs 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 rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.