GeForce GTS 150 vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which uses a 40 nm design. AMD has set the core frequency at 650 MHz. The DDR3 RAM runs at a frequency of 900 MHz on this particular card. It features 400(80x5) SPUs as well as 20 Texture Address Units and 8 ROPs.

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

Performance-wise, the GeForce GTS 150 should in theory be a bit better than the Radeon HD 5570 overall. (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%) more effective at anisotropic 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 much (more or less 128%) better at FSAA than the Radeon HD 5570, and also able to handle higher screen resolutions more effectively. (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 largest amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.