GeForce GTX 750 vs Radeon HD 3470 256MB

Intro

Compare that to the Radeon HD 3470 256MB, which comes with GPU clock speed of 800 MHz, and 256 MB of DDR2 memory set to run at 950 MHz through a 128-bit bus. It also is comprised of 40(8x5) Stream Processors, 4 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 750 will be 163% quicker than the Radeon HD 3470 256MB in general, because of its higher bandwidth. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 49600 (163%)

Texel Rate

The GeForce GTX 750 will be a lot (about 920%) better at AF than the Radeon HD 3470 256MB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 29440 (920%)

Pixel Rate

The GeForce GTX 750 will be quite a bit (approximately 410%) more effective at AA than the Radeon HD 3470 256MB, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 3470 256MB		3200 Mpixels/sec
	Difference: 13120 (410%)

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 max amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.