GeForce GTX 460 (OEM) vs Radeon R7 250X 2GB

Intro

Compare those specifications to the Radeon R7 250X 2GB, which features core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 55 Watts (58%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 (OEM) should in theory be quite a bit better than the Radeon R7 250X 2GB in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 36800 (51%)

Texel Rate

The Radeon R7 250X 2GB will be a small bit (more or less 10%) better at anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 3600 (10%)

Pixel Rate

The GeForce GTX 460 (OEM) is a lot (approximately 30%) more effective at full screen anti-aliasing than the Radeon R7 250X 2GB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 4800 (30%)

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.