GeForce GTX 260 Core 216 vs Radeon R7 250X 2GB

Intro

Compare that to the Radeon R7 250X 2GB, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM works at a frequency of 1125 MHz on this card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 107 Watts (113%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 Core 216 should be much faster than the Radeon R7 250X 2GB overall. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 39888 (55%)

Texel Rate

The GeForce GTX 260 Core 216 is a small bit (more or less 4%) better at anisotropic filtering than the Radeon R7 250X 2GB. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 1472 (4%)

Pixel Rate

The GeForce GTX 260 Core 216 should be just a bit (approximately 1%) better at full screen anti-aliasing than the Radeon R7 250X 2GB, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 128 (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 largest amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If 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 in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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