GeForce GTX 750 vs Radeon HD 3470 256MB

Intro

Compare those specs to the Radeon HD 3470 256MB, which features core speeds of 800 MHz on the GPU, and 950 MHz on the 256 MB of DDR2 RAM. It features 40(8x5) SPUs as well as 4 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 750 should theoretically perform quite a bit faster than the Radeon HD 3470 256MB overall. (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 quite a bit (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 is quite a bit (approximately 410%) better at full screen anti-aliasing than the Radeon HD 3470 256MB, and should be capable of handling higher 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: Memory bandwidth is the max amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.