GeForce GTX 660 Ti vs Radeon HD 3470 256MB

Intro

Compare those specifications to the Radeon HD 3470 256MB, which makes use of a 55 nm design. AMD has set the core frequency at 800 MHz. The DDR2 memory is set to run at a frequency of 950 MHz on this card. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should theoretically be much superior to the Radeon HD 3470 256MB overall. (explain)

GeForce GTX 660 Ti		144000 MB/sec
Radeon HD 3470 256MB		30400 MB/sec
	Difference: 113600 (374%)

Texel Rate

The GeForce GTX 660 Ti should be quite a bit (more or less 3103%) more effective at AF than the Radeon HD 3470 256MB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon HD 3470 256MB		3200 Mtexels/sec
	Difference: 99280 (3103%)

Pixel Rate

The GeForce GTX 660 Ti should be a lot (more or less 586%) better at anti-aliasing than the Radeon HD 3470 256MB, and able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
Radeon HD 3470 256MB		3200 Mpixels/sec
	Difference: 18760 (586%)

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 largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on 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 bandwidth is, the lower the potential to reach the maximum fill rate.