GeForce GTX 970M vs Radeon HD 5670

Intro

Compare that to the Radeon HD 5670, which comes with a core clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation 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

The GeForce GTX 970M, in theory, should perform much 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 is quite a bit (approximately 377%) faster with regards to 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 will be much (approximately 615%) more effective at full screen anti-aliasing than the Radeon HD 5670, and will be capable of handling higher resolutions better. (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 largest amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.