GeForce GTX Titan Black vs Radeon HD 5450

Intro

Compare those specifications to the Radeon HD 5450, which has a clock speed of 650 MHz and a DDR3 memory speed of 800 MHz. It also uses a 64-bit memory bus, and makes use of a 40 nm design. It is made up of 80(16x5) SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 231 Watts (1216%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan Black should be 2525% faster than the Radeon HD 5450 in general, because of its higher data rate. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 323200 (2525%)

Texel Rate

The GeForce GTX Titan Black should be quite a bit (about 4003%) faster with regards to texture filtering than the Radeon HD 5450. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 208160 (4003%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX Titan Black is a better choice, and very much so. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 40072 (1541%)

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 data (measured in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should 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 anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.