GeForce GTS 250 512MB vs Radeon R7 M260X

Intro

Compare those specifications to the Radeon R7 M260X, which has a GPU core clock speed of 825 MHz, and 2048 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also is made up of 384 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTS 250 512MB should theoretically be just a bit superior to the Radeon R7 M260X overall. (explain)

GeForce GTS 250 512MB		70400 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 6400 (10%)

Texel Rate

The GeForce GTS 250 512MB will be quite a bit (approximately 139%) more effective at texture filtering than the Radeon R7 M260X. (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 27432 (139%)

Pixel Rate

The GeForce GTS 250 512MB is quite a bit (approximately 79%) more effective at FSAA than the Radeon R7 M260X, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTS 250 512MB		11808 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 5208 (79%)

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 maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 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 get to the max fill rate.