GeForce GTX 970M vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which uses a 40 nm design. AMD has clocked the core speed at 775 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this specific model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 970M		75 Watts
	Difference: 14 Watts (23%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970M should perform much faster than the Radeon HD 5670 overall. (explain)

GeForce GTX 970M		96000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 32000 (50%)

Texel Rate

The GeForce GTX 970M is a lot (about 377%) better at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 58420 (377%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 970M is superior to the Radeon HD 5670, and very much so. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 38152 (615%)

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 max amount of information (counted in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 can be processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.