GeForce GT 450 (OEM) vs GeForce GTX Titan

Intro

Compare those specifications to the GeForce GTX Titan, which uses a 28 nm design. nVidia has set the core speed at 837 MHz. The GDDR5 memory is set to run at a speed of 1502 MHz on this particular card. It features 2688 SPUs along with 224 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX Titan		250 Watts
	Difference: 144 Watts (136%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan should theoretically be quite a bit better than the GeForce GT 450 (OEM) overall. (explain)

GeForce GTX Titan		288384 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 192384 (200%)

Texel Rate

The GeForce GTX Titan is quite a bit (about 889%) better at texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX Titan		187488 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 168528 (889%)

Pixel Rate

The GeForce GTX Titan should be quite a bit (approximately 112%) better at FSAA than the GeForce GT 450 (OEM), and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX Titan		40176 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 21216 (112%)

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 (measured in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should 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, HDR 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 worked out by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.