GeForce GTX 970 vs Radeon HD 5450

Intro

Compare all of that to the Radeon HD 5450, which comes with core speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 970		145 Watts
	Difference: 126 Watts (663%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970 will be 1650% quicker than the Radeon HD 5450 in general, due to its higher data rate. (explain)

GeForce GTX 970		224000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 211200 (1650%)

Texel Rate

The GeForce GTX 970 is a lot (approximately 2000%) faster with regards to AF than the Radeon HD 5450. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 104000 (2000%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 970 is the winner, by a large margin. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 64600 (2485%)

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 maximum amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 maximum amount of pixels the video card 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.