GeForce GTS 450 vs Geforce GTX 690

Intro

Compare those specs to the Geforce GTX 690, which has clock speeds of 915 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator 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

Theoretically speaking, the Geforce GTX 690 will be 566% faster than the GeForce GTS 450 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Geforce GTX 690 should be quite a bit (more or less 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

If using a high screen resolution is important to you, then the Geforce GTX 690 is a better choice, by a large margin. (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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.