Radeon HD 4350 vs Radeon R7 250

Intro

Compare all that to the Radeon R7 250, which has a clock speed of 1000 MHz and a GDDR5 memory frequency of 1150 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350		22 Watts
Radeon R7 250		65 Watts
	Difference: 43 Watts (195%)

Memory Bandwidth

The Radeon R7 250, in theory, should be quite a bit faster than the Radeon HD 4350 in general. (explain)

Radeon R7 250		73600 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 65600 (820%)

Texel Rate

The Radeon R7 250 is quite a bit (about 422%) more effective at AF than the Radeon HD 4350. (explain)

Radeon R7 250		24000 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 19400 (422%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R7 250 is the winner, by a large margin. (explain)

Radeon R7 250		8000 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 5700 (248%)

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 moved over the external memory interface in 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, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.