Geforce GTX 780 vs Radeon HD 3470 512MB

Intro

Compare all of that to the Radeon HD 3470 512MB, which features GPU clock speed of 800 MHz, and 512 MB of GDDR3 RAM set to run at 950 MHz through a 128-bit bus. It also is made up of 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 780, in theory, should perform much faster than the Radeon HD 3470 512MB overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 257984 (849%)

Texel Rate

The Geforce GTX 780 will be quite a bit (more or less 5078%) better at texture filtering than the Radeon HD 3470 512MB. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 162496 (5078%)

Pixel Rate

The Geforce GTX 780 should be quite a bit (about 1195%) more effective at FSAA than the Radeon HD 3470 512MB, and also should be capable of handling higher resolutions while still performing well. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 38224 (1195%)

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 data (measured in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). 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 ability to reach the maximum fill rate.