GeForce GT 450 (OEM) vs GeForce GTX 280

Intro

Compare all of that to the GeForce GTX 280, which has core clock speeds of 602 MHz on the GPU, and 1107 MHz on the 1024 MB of GDDR3 RAM. It features 240 SPUs as well as 80 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 280		236 Watts
	Difference: 130 Watts (123%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 will be 48% quicker than the GeForce GT 450 (OEM) overall, due to its greater bandwidth. (explain)

GeForce GTX 280		141696 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 45696 (48%)

Texel Rate

The GeForce GTX 280 will be much (more or less 154%) faster with regards to AF than the GeForce GT 450 (OEM). (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 29200 (154%)

Pixel Rate

The GeForce GTX 280 is a bit (more or less 2%) faster with regards to anti-aliasing than the GeForce GT 450 (OEM), and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 280		19264 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 304 (2%)

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 megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.