GeForce GT 310 vs Radeon R7 250

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310		31 Watts
Radeon R7 250		65 Watts
	Difference: 34 Watts (110%)

Memory Bandwidth

The Radeon R7 250 should theoretically perform a lot faster than the GeForce GT 310 overall. (explain)

Radeon R7 250		73600 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 57600 (360%)

Texel Rate

The Radeon R7 250 should be a lot (more or less 409%) faster with regards to anisotropic filtering than the GeForce GT 310. (explain)

Radeon R7 250		24000 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 19288 (409%)

Pixel Rate

The Radeon R7 250 should be a lot (about 240%) better at FSAA than the GeForce GT 310, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon R7 250		8000 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 5644 (240%)

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 transported over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.