Geforce GTX 770 vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this specific card. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830		175 Watts
Geforce GTX 770		230 Watts
	Difference: 55 Watts (31%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 770 will be 75% quicker than the Radeon HD 5830 in general, because of its greater data rate. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 96384 (75%)

Texel Rate

The Geforce GTX 770 will be a lot (approximately 199%) more effective at AF than the Radeon HD 5830. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 89088 (199%)

Pixel Rate

The Geforce GTX 770 should be a lot (approximately 162%) better at FSAA than the Radeon HD 5830, and able to handle higher screen resolutions while still performing well. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 20672 (162%)

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 information (measured in MB per second) that can be transported past 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 type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.