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GeForce GTS 450 1GB vs Geforce GTX 690

Intro

The GeForce GTS 450 1GB makes use of a 40 nm design. nVidia has set the core frequency at 783 MHz. The GDDR5 memory works at a frequency of 902 MHz on this particular model. It features 192 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Geforce GTX 690, which makes use of a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM runs at a speed of 1502 MHz on this specific card. It features 1536 SPUs along with 128 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB 106 Watts
Geforce GTX 690 300 Watts
Difference: 194 Watts (183%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 690 should perform much faster than the GeForce GTS 450 1GB overall. (explain)

Geforce GTX 690 384512 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 326784 (566%)

Texel Rate

The Geforce GTX 690 is a lot (about 835%) faster with regards to texture filtering than the GeForce GTS 450 1GB. (explain)

Geforce GTX 690 234240 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 209184 (835%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 690 is superior to the GeForce GTS 450 1GB, by a large margin. (explain)

Geforce GTX 690 58560 Mpixels/sec
GeForce GTS 450 1GB 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

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GeForce GTS 450 1GB

Amazon.com

Geforce GTX 690

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTS 450 1GB Geforce GTX 690
Manufacturer nVidia nVidia
Year September 2010 April 2012
Code Name GF106 GK104
Memory 1024 MB 2048 MB (x2)
Core Speed 783 MHz 915 MHz (x2)
Memory Speed 3608 MHz 6008 MHz (x2)
Power (Max TDP) 106 watts 300 watts
Bandwidth 57728 MB/sec 384512 MB/sec
Texel Rate 25056 Mtexels/sec 234240 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 58560 Mpixels/sec
Unified Shaders 192 1536 (x2)
Texture Mapping Units 32 128 (x2)
Render Output Units 16 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit (x2)
Fab Process 40 nm 28 nm
Transistors 1170 million 3540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 450 1GB

Amazon.com

Geforce GTX 690

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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