GeForce GTS 450 vs Radeon R7 250X 2GB

Intro

Compare those specs to the Radeon R7 250X 2GB, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM runs at a speed of 1125 MHz on this specific card. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTS 450		106 Watts
	Difference: 11 Watts (12%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250X 2GB should be a lot faster than the GeForce GTS 450 in general. (explain)

Radeon R7 250X 2GB		72000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 14272 (25%)

Texel Rate

The Radeon R7 250X 2GB will be much (more or less 60%) more effective at anisotropic filtering than the GeForce GTS 450. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 14944 (60%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 250X 2GB is the winner, and very much so. (explain)

Radeon R7 250X 2GB		16000 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 3472 (28%)

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 data (measured in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.