GeForce GT 320 vs Radeon R7 250

Intro

Compare those specs to the Radeon R7 250, which features a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1150 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon R7 250		65 Watts
	Difference: 22 Watts (51%)

Memory Bandwidth

As far as performance goes, the Radeon R7 250 should theoretically be quite a bit superior to the GeForce GT 320 overall. (explain)

Radeon R7 250		73600 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 48320 (191%)

Texel Rate

The Radeon R7 250 will be much (about 85%) more effective at AF than the GeForce GT 320. (explain)

Radeon R7 250		24000 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 11040 (85%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R7 250 is the winner, by far. (explain)

Radeon R7 250		8000 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 3680 (85%)

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 (counted in MB per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.