GeForce GT 130 vs Radeon R9 M265X

Intro

Compare those specifications to the Radeon R9 M265X, which has a core clock speed of 575 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M265X should be 500% faster than the GeForce GT 130 overall, due to its greater data rate. (explain)

Radeon R9 M265X		72000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 60000 (500%)

Texel Rate

The Radeon R9 M265X is much (about 92%) more effective at texture filtering than the GeForce GT 130. (explain)

Radeon R9 M265X		23000 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 11000 (92%)

Pixel Rate

The Radeon R9 M265X is just a bit (approximately 15%) faster with regards to full screen anti-aliasing than the GeForce GT 130, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 M265X		9200 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 1200 (15%)

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 max amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.