GeForce GTX 660 vs Radeon R5 M330

Intro

Compare those specifications to the Radeon R5 M330, which features a core clock frequency of 1030 MHz and a DDR3 memory speed of 900 MHz. It also makes use of a 64-bit memory bus, and uses a 28 nm design. It is comprised of 320 SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 should in theory be quite a bit superior to the Radeon R5 M330 overall. (explain)

GeForce GTX 660		144192 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 129792 (901%)

Texel Rate

The GeForce GTX 660 will be much (more or less 281%) more effective at AF than the Radeon R5 M330. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 57800 (281%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 660 is superior to the Radeon R5 M330, and very much so. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 15280 (185%)

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 data (measured in MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.