GeForce GTX 970M vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which makes use of a 28 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 RAM runs at a speed of 1375 MHz on this particular card. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon R9 M295X		125 Watts
	Difference: 50 Watts (67%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M295X should theoretically be much better than the GeForce GTX 970M in general. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 80000 (83%)

Texel Rate

The Radeon R9 M295X will be much (more or less 30%) more effective at texture filtering than the GeForce GTX 970M. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 22080 (30%)

Pixel Rate

The GeForce GTX 970M will be quite a bit (more or less 85%) better at anti-aliasing than the Radeon R9 M295X, and will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 20352 (85%)

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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). 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 potential to reach the maximum fill rate.