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GeForce GTS 450 1GB vs Geforce GTX 690

Intro

The GeForce GTS 450 1GB has clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs as well as 32 Texture Address Units and 16 ROPs.

Compare those specs to the Geforce GTX 690, which features core 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 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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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

The Geforce GTX 690 should theoretically perform much faster than the GeForce GTS 450 1GB in general. (explain)

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

Texel Rate

The Geforce GTX 690 will be quite a bit (about 835%) faster with regards to anisotropic 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

The Geforce GTX 690 will be a lot (about 367%) faster with regards to FSAA than the GeForce GTS 450 1GB, and also should be capable of handling higher resolutions more effectively. (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 max amount of information (counted in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential 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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