GeForce GTX 590 vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which features a clock frequency of 1000 MHz and a HBM memory speed of 500 MHz. It also makes use of a 4096-bit bus, and uses a 28 nm design. It is made up 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 590		6680 points
	Difference: 8238 (123%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
GeForce GTX 590		365 Watts
	Difference: 190 Watts (109%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 Nano is 56% faster than the GeForce GTX 590 in general, because of its greater data rate. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 590		328320 MB/sec
	Difference: 183680 (56%)

Texel Rate

The Radeon R9 Nano is quite a bit (about 229%) better at texture filtering than the GeForce GTX 590. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 590		77696 Mtexels/sec
	Difference: 178304 (229%)

Pixel Rate

The Radeon R9 Nano will be a small bit (about 10%) better at full screen anti-aliasing than the GeForce GTX 590, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTX 590		58272 Mpixels/sec
	Difference: 5728 (10%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in 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 its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.