GeForce GTX 870M vs Radeon HD 5570

Intro

Compare those specs to the Radeon HD 5570, which makes use of a 40 nm design. AMD has clocked the core frequency at 650 MHz. The DDR3 memory works at a speed of 900 MHz on this particular model. It features 400(80x5) SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 870M		110 Watts
	Difference: 67 Watts (156%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 870M will be 233% faster than the Radeon HD 5570 in general, due to its greater data rate. (explain)

GeForce GTX 870M		96000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 67200 (233%)

Texel Rate

The GeForce GTX 870M should be much (more or less 711%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 870M		105392 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 92392 (711%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 870M is a better choice, by far. (explain)

GeForce GTX 870M		22584 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 17384 (334%)

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 (in units of megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.