GeForce GTS 250 1GB vs Radeon R7 250X

Intro

Compare that to the Radeon R7 250X, which comes with clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 50 Watts (53%)

Memory Bandwidth

Theoretically, the Radeon R7 250X should be just a bit faster than the GeForce GTS 250 1GB overall. (explain)

Radeon R7 250X		72000 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 1600 (2%)

Texel Rate

The GeForce GTS 250 1GB should be a small bit (approximately 18%) better at AF than the Radeon R7 250X. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 7232 (18%)

Pixel Rate

The Radeon R7 250X will be much (approximately 36%) better at AA than the GeForce GTS 250 1GB, and also capable of handling higher screen resolutions better. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 4192 (36%)

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 megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once 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 amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.