Geforce GTX 780 vs Radeon R9 Nano

Intro

Compare those specs to the Radeon R9 Nano, which features GPU clock speed of 1000 MHz, and 4096 MB of HBM memory set to run at 500 MHz through a 4096-bit bus. It also features 4096 SPUs, 256 Texture Address Units, 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 780		10082 points
	Difference: 4836 (48%)

Ethereum Mining Hash Rate

Radeon R9 Nano		30 Mh/s
Geforce GTX 780		20 Mh/s
	Difference: 10 (50%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
Geforce GTX 780		250 Watts
	Difference: 75 Watts (43%)

Memory Bandwidth

In theory, the Radeon R9 Nano should perform a lot faster than the Geforce GTX 780 in general. (explain)

Radeon R9 Nano		512000 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 223616 (78%)

Texel Rate

The Radeon R9 Nano should be quite a bit (more or less 54%) better at anisotropic filtering than the Geforce GTX 780. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 90304 (54%)

Pixel Rate

The Radeon R9 Nano will be much (about 54%) better at FSAA than the Geforce GTX 780, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 22576 (54%)

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 largest amount of data (in units of 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 its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of 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.