GeForce GTX 750 vs Radeon HD 3470 256MB

Intro

Compare those specifications 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

Theoretically speaking, the GeForce GTX 750 is 163% faster than the Radeon HD 3470 256MB overall, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 750 should be quite a bit (about 920%) faster with regards to 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%) better at AA than the Radeon HD 3470 256MB, and also will be able to handle higher resolutions without losing too much performance. (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 maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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