GeForce GTX 750 Ti vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which features a core clock speed of 650 MHz and a DDR3 memory speed of 800 MHz. It also features a 64-bit memory bus, and uses a 40 nm design. It features 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 750 Ti		60 Watts
	Difference: 41 Watts (216%)

Memory Bandwidth

The GeForce GTX 750 Ti should in theory perform much faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 750 Ti		86400 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 73600 (575%)

Texel Rate

The GeForce GTX 750 Ti will be a lot (more or less 685%) faster with regards to AF than the Radeon HD 5450. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 35600 (685%)

Pixel Rate

The GeForce GTX 750 Ti will be quite a bit (about 528%) more effective at AA than the Radeon HD 5450, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 13720 (528%)

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 (measured in megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.