GeForce GTX 260 Core 216 vs Radeon R9 M375

Intro

Compare all that to the Radeon R9 M375, which uses a 28 nm design. AMD has set the core frequency at 1015 MHz. The DDR3 memory is set to run at a speed of 1100 MHz on this particular model. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 Core 216 is 218% faster than the Radeon R9 M375 in general, because of its greater data rate. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 76688 (218%)

Texel Rate

The GeForce GTX 260 Core 216 should be just a bit (approximately 2%) more effective at AF than the Radeon R9 M375. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 872 (2%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M375 is the winner, though only just barely. (explain)

Radeon R9 M375		16240 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 112 (1%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must 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 anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.