GeForce GTS 150 vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which features a clock speed of 650 MHz and a DDR3 memory frequency of 900 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTS 150		141 Watts
	Difference: 98 Watts (228%)

Memory Bandwidth

The GeForce GTS 150, in theory, should be just a bit faster than the Radeon HD 5570 in general. (explain)

GeForce GTS 150		32000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GTS 150 should be a lot (about 264%) faster with regards to texture filtering than the Radeon HD 5570. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 34360 (264%)

Pixel Rate

The GeForce GTS 150 should be a lot (approximately 128%) faster with regards to AA than the Radeon HD 5570, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTS 150		11840 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 6640 (128%)

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 transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units of the card 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.