GeForce GT 315 vs Radeon HD 6670 (OEM)

Intro

Compare those specs to the Radeon HD 6670 (OEM), which has a core clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It features 480 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon HD 6670 (OEM)		63 Watts
	Difference: 11 Watts (21%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6670 (OEM) will be 153% quicker than the GeForce GT 315 in general, because of its greater bandwidth. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 38720 (153%)

Texel Rate

The Radeon HD 6670 (OEM) will be quite a bit (about 92%) faster with regards to texture filtering than the GeForce GT 315. (explain)

Radeon HD 6670 (OEM)		19200 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 9200 (92%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6670 (OEM) is superior to the GeForce GT 315, by far. (explain)

Radeon HD 6670 (OEM)		6400 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 1400 (28%)

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 megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.