GeForce GTS 450 vs GeForce GTX 285 1GB

Intro

Compare all of that to the GeForce GTX 285 1GB, which comes with GPU clock speed of 648 MHz, and 1024 MB of GDDR3 RAM running at 1242 MHz through a 512-bit bus. It also is made up of 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 98 Watts (92%)

Memory Bandwidth

The GeForce GTX 285 1GB, in theory, should be a lot faster than the GeForce GTS 450 in general. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 101248 (175%)

Texel Rate

The GeForce GTX 285 1GB will be a lot (approximately 107%) better at AF than the GeForce GTS 450. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 26784 (107%)

Pixel Rate

The GeForce GTX 285 1GB is much (more or less 66%) better at AA than the GeForce GTS 450, and also able to handle higher resolutions better. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 8208 (66%)

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 moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends 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 maximum fill rate.