GeForce GT 315 vs GeForce GT 450 (OEM)

Intro

Compare those specifications to the GeForce GT 450 (OEM), which has GPU core speed of 790 MHz, and 1536 MB of GDDR5 memory set to run at 1000 MHz through a 192-bit bus. It also is made up of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 54 Watts (104%)

Memory Bandwidth

In theory, the GeForce GT 450 (OEM) should perform quite a bit faster than the GeForce GT 315 overall. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 70720 (280%)

Texel Rate

The GeForce GT 450 (OEM) should be quite a bit (more or less 90%) better at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 8960 (90%)

Pixel Rate

The GeForce GT 450 (OEM) is quite a bit (more or less 279%) faster with regards to anti-aliasing than the GeForce GT 315, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 13960 (279%)

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 (counted in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of 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 calculated by multiplying the number of Render Output Units by the clock 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.