Geforce GTX 770 vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which uses a 40 nm design. AMD has set the core frequency at 650 MHz. The DDR3 memory runs at a frequency of 800 MHz on this particular card. It features 80(16x5) SPUs as well as 8 TAUs 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 770		230 Watts
	Difference: 211 Watts (1111%)

Memory Bandwidth

The Geforce GTX 770 should theoretically perform a lot faster than the Radeon HD 5450 in general. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 211584 (1653%)

Texel Rate

The Geforce GTX 770 should be a lot (about 2475%) faster with regards to anisotropic filtering than the Radeon HD 5450. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 128688 (2475%)

Pixel Rate

The Geforce GTX 770 should be a lot (more or less 1187%) better at AA than the Radeon HD 5450, and will be able to handle higher screen resolutions more effectively. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 30872 (1187%)

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 information (measured in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be processed per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.