GeForce GT 230 vs Radeon R9 Nano

Intro

Compare those specs to the Radeon R9 Nano, which comes with a core clock frequency of 1000 MHz and a HBM memory frequency 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 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
Radeon R9 Nano		175 Watts
	Difference: 110 Watts (169%)

Memory Bandwidth

Performance-wise, the Radeon R9 Nano should in theory be a lot superior to the GeForce GT 230 overall. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 473600 (1233%)

Texel Rate

The Radeon R9 Nano should be much (about 2809%) better at texture filtering than the GeForce GT 230. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 247200 (2809%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 Nano is a better choice, and very much so. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 59600 (1355%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 ability to get to the max fill rate.