GeForce GTX 650 Ti 2GB vs Radeon HD 6870

Intro

Compare all that to the Radeon HD 6870, which has a core clock frequency of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is comprised of 1120 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
Radeon HD 6870		151 Watts
	Difference: 41 Watts (37%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6870 will be 56% quicker than the GeForce GTX 650 Ti 2GB overall, because of its greater bandwidth. (explain)

Radeon HD 6870		134400 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 48000 (56%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be a bit (more or less 18%) faster with regards to AF than the Radeon HD 6870. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon HD 6870		50400 Mtexels/sec
	Difference: 8992 (18%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6870 is superior to the GeForce GTX 650 Ti 2GB, by far. (explain)

Radeon HD 6870		28800 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 13952 (94%)

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 (measured in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs 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 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 reach the maximum fill rate.