GeForce GT 315 vs GeForce GTX 460 (OEM)

Intro

Compare those specs to the GeForce GTX 460 (OEM), which makes use of a 40 nm design. nVidia has set the core frequency at 650 MHz. The GDDR5 RAM works at a speed of 850 MHz on this card. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 98 Watts (188%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 (OEM) should in theory be much better than the GeForce GT 315 in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 83520 (330%)

Texel Rate

The GeForce GTX 460 (OEM) is quite a bit (approximately 264%) faster with regards to texture filtering than the GeForce GT 315. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 26400 (264%)

Pixel Rate

The GeForce GTX 460 (OEM) should be much (about 316%) more effective at anti-aliasing than the GeForce GT 315, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 15800 (316%)

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 megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of 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 faster 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.