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GeForce 8800 GTX vs GeForce GTS 450 1GB

Intro

The GeForce 8800 GTX comes with core speeds of 575 MHz on the GPU, and 900 MHz on the 768 MB of GDDR3 RAM. It features 128 SPUs as well as 64 Texture Address Units and 24 Rasterization Operator Units.

Compare those specifications to the GeForce GTS 450 1GB, which has core clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB 106 Watts
GeForce 8800 GTX 155 Watts
Difference: 49 Watts (46%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTX will be 50% faster than the GeForce GTS 450 1GB in general, because of its higher bandwidth. (explain)

GeForce 8800 GTX 86400 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 28672 (50%)

Texel Rate

The GeForce 8800 GTX should be a lot (more or less 47%) more effective at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 11744 (47%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 8800 GTX is the winner, though not by far. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 1272 (10%)

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

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GeForce 8800 GTX

Amazon.com

Check prices at:

GeForce GTS 450 1GB

Amazon.com

Check prices at:

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 8800 GTX GeForce GTS 450 1GB
Manufacturer nVidia nVidia
Year Nov 2006 September 2010
Code Name G80 GF106
Memory 768 MB 1024 MB
Core Speed 575 MHz 783 MHz
Memory Speed 1800 MHz 3608 MHz
Power (Max TDP) 155 watts 106 watts
Bandwidth 86400 MB/sec 57728 MB/sec
Texel Rate 36800 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 128 192
Texture Mapping Units 64 32
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-bit 128-bit
Fab Process 90 nm 40 nm
Transistors 681 million 1170 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be applied per second. This 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 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 maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTX

Amazon.com

Check prices at:

GeForce GTS 450 1GB

Amazon.com

Check prices at:

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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