GeForce GTS 450 vs GeForce GTX 260 Core 216

Intro

Compare those specs to the GeForce GTX 260 Core 216, which features a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also uses a 448-bit bus, and makes use of a 65 nm design. It features 216 SPUs, 72 TAUs, and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 96 Watts (91%)

Memory Bandwidth

The GeForce GTX 260 Core 216 should theoretically perform a lot faster than the GeForce GTS 450 in general. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 54160 (94%)

Texel Rate

The GeForce GTX 260 Core 216 will be a lot (more or less 66%) faster with regards to anisotropic filtering than the GeForce GTS 450. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 16416 (66%)

Pixel Rate

The GeForce GTX 260 Core 216 should be quite a bit (more or less 29%) faster with regards to anti-aliasing than the GeForce GTS 450, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 3600 (29%)

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 (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 can be processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.