GeForce 830M vs Radeon R7 250X 2GB

Intro

Compare that to the Radeon R7 250X 2GB, which has a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon R7 250X 2GB		95 Watts
	Difference: 70 Watts (280%)

Memory Bandwidth

In theory, the Radeon R7 250X 2GB should be a lot faster than the GeForce 830M in general. (explain)

Radeon R7 250X 2GB		72000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 57600 (400%)

Texel Rate

The Radeon R7 250X 2GB should be quite a bit (more or less 143%) more effective at AF than the GeForce 830M. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 23536 (143%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 250X 2GB is superior to the GeForce 830M, by far. (explain)

Radeon R7 250X 2GB		16000 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 7768 (94%)

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 information (measured in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied 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. The number is worked out by multiplying the number of ROPs by the the core 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 rate also depends on lots of 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.