GeForce GTX 970M vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which features a core clock speed of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It features 400(80x5) SPUs, 20 Texture Address Units, and 8 ROPs.

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

The GeForce GTX 970M, in theory, should be a lot faster than the Radeon HD 5670 in general. (explain)

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

Texel Rate

The GeForce GTX 970M should be much (about 377%) more effective at AF than the Radeon HD 5670. (explain)

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

Pixel Rate

The GeForce GTX 970M should be a lot (approximately 615%) more effective at FSAA than the Radeon HD 5670, and also will be capable of handling higher resolutions more effectively. (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 maximum amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 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 ability to reach the max fill rate.