GeForce GTS 250 1GB vs Radeon R7 M265

Intro

Compare that to the Radeon R7 M265, which features a core clock speed of 725 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 1GB should perform much faster than the Radeon R7 M265 in general. (explain)

GeForce GTS 250 1GB		70400 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 38400 (120%)

Texel Rate

The GeForce GTS 250 1GB is a lot (about 171%) faster with regards to anisotropic filtering than the Radeon R7 M265. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 29832 (171%)

Pixel Rate

The GeForce GTS 250 1GB will be quite a bit (approximately 104%) better at FSAA than the Radeon R7 M265, and also able to handle higher resolutions while still performing well. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 6008 (104%)

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 (counted in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of 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 clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 max fill rate.