GeForce GTS 450 vs Geforce GTX 690

Intro

Compare that to the Geforce GTX 690, which features a clock speed of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit bus, and uses a 28 nm design. It features 1536 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 690		13111 points
GeForce GTS 450		1453 points
	Difference: 11658 (802%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Geforce GTX 690		300 Watts
	Difference: 194 Watts (183%)

Memory Bandwidth

In theory, the Geforce GTX 690 should be 566% faster than the GeForce GTS 450 in general, due to its greater bandwidth. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 326784 (566%)

Texel Rate

The Geforce GTX 690 will be much (approximately 835%) faster with regards to AF than the GeForce GTS 450. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 209184 (835%)

Pixel Rate

The Geforce GTX 690 should be quite a bit (approximately 367%) more effective at FSAA than the GeForce GTS 450, and will be able to handle higher resolutions without slowing down too much. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 46032 (367%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 are applied per second. This is calculated by multiplying the total number of texture units 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to 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 bandwidth is, the lower the potential to reach the maximum fill rate.