GeForce GTS 450 1GB vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which features core clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs as well as 256 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
Radeon R9 Nano		175 Watts
	Difference: 69 Watts (65%)

Memory Bandwidth

As far as performance goes, the Radeon R9 Nano should theoretically be quite a bit superior to the GeForce GTS 450 1GB in general. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 454272 (787%)

Texel Rate

The Radeon R9 Nano will be a lot (about 922%) better at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 230944 (922%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 Nano is a better choice, by a large margin. (explain)

Radeon R9 Nano		64000 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 51472 (411%)

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 max amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.