GeForce GT 315 vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which comes with a clock speed of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It features 1120(224x5) SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon HD 5830		175 Watts
	Difference: 123 Watts (237%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5830 should in theory be quite a bit superior to the GeForce GT 315 in general. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 102720 (406%)

Texel Rate

The Radeon HD 5830 will be much (more or less 348%) faster with regards to texture filtering than the GeForce GT 315. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 34800 (348%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 5830 is superior to the GeForce GT 315, by far. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 7800 (156%)

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 (counted in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at 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 could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.