Geforce GTX 770 vs Radeon HD 5450

Intro

Compare all that to the Radeon HD 5450, which has 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 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

Theoretically speaking, the Geforce GTX 770 is 1653% quicker than the Radeon HD 5450 overall, due to its higher bandwidth. (explain)

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

Texel Rate

The Geforce GTX 770 will be quite a bit (about 2475%) better at AF than the Radeon HD 5450. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 770 is a better choice, and very much so. (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 maximum amount of information (counted in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.