GeForce GTS 150 vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which features core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1120(224x5) SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
Radeon HD 5830		175 Watts
	Difference: 34 Watts (24%)

Memory Bandwidth

Theoretically, the Radeon HD 5830 should be much faster than the GeForce GTS 150 overall. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 96000 (300%)

Texel Rate

The GeForce GTS 150 is a little bit (approximately 6%) better at AF than the Radeon HD 5830. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 2560 (6%)

Pixel Rate

The Radeon HD 5830 will be a little bit (about 8%) faster with regards to FSAA than the GeForce GTS 150, and able to handle higher screen resolutions better. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 960 (8%)

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 (in units of MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.