GeForce GTX 970M vs Radeon R5 M330

Intro

Compare all of that to the Radeon R5 M330, which has a clock frequency of 1030 MHz and a DDR3 memory speed of 900 MHz. It also uses a 64-bit memory bus, and uses a 28 nm design. It is made up of 320 SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 970M should be 567% quicker than the Radeon R5 M330 in general, due to its greater bandwidth. (explain)

GeForce GTX 970M		96000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 81600 (567%)

Texel Rate

The GeForce GTX 970M will be a lot (about 259%) faster with regards to AF than the Radeon R5 M330. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 53320 (259%)

Pixel Rate

The GeForce GTX 970M is much (approximately 438%) better at full screen anti-aliasing than the Radeon R5 M330, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 36112 (438%)

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 MB per second) that can be moved past the external memory interface in one second. It 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 card's memory bandwidth, the better 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 amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.