GeForce GTX 980 vs Radeon HD 5450

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 980		165 Watts
	Difference: 146 Watts (768%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980 should perform much faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 980		224000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 211200 (1650%)

Texel Rate

The GeForce GTX 980 is quite a bit (about 2672%) more effective at texture filtering than the Radeon HD 5450. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 138928 (2672%)

Pixel Rate

The GeForce GTX 980 is quite a bit (approximately 2672%) faster with regards to FSAA than the Radeon HD 5450, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 69464 (2672%)

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 maximum amount of data (in units of MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, 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 number is worked out by multiplying the total amount of texture units by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.