GeForce GTX 960 vs Radeon HD 5830

Intro

Compare that to the Radeon HD 5830, which features GPU clock speed of 800 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is comprised of 1120(224x5) SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960		120 Watts
Radeon HD 5830		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 should perform a little bit faster than the GeForce GTX 960 overall. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GTX 960		112000 MB/sec
	Difference: 16000 (14%)

Texel Rate

The GeForce GTX 960 is much (about 61%) more effective at AF than the Radeon HD 5830. (explain)

GeForce GTX 960		72128 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 27328 (61%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 960 is a better choice, by a large margin. (explain)

GeForce GTX 960		36064 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 23264 (182%)

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 megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.