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GeForce 8800 GTS (G80) 320MB vs GeForce GTS 450

Intro

The GeForce 8800 GTS (G80) 320MB has a GPU core clock speed of 513 MHz, and the 320 MB of GDDR3 memory runs at 792 MHz through a 320-bit bus. It also features 96 Stream Processors, 48 TAUs, and 20 ROPs.

Compare that to the GeForce GTS 450, which features GPU clock speed of 783 MHz, and 512 MB of GDDR5 memory set to run at 902 MHz through a 128-bit bus. It also is made up of 192 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 106 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 37 Watts (35%)

Memory Bandwidth

In theory, the GeForce 8800 GTS (G80) 320MB should perform a small bit faster than the GeForce GTS 450 in general. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 5632 (10%)

Texel Rate

The GeForce GTS 450 is just a bit (more or less 2%) better at anisotropic filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTS 450 25056 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 432 (2%)

Pixel Rate

The GeForce GTS 450 should be a lot (approximately 22%) better at AA than the GeForce 8800 GTS (G80) 320MB, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTS 450 12528 Mpixels/sec
GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Difference: 2268 (22%)

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 GTS (G80) 320MB

Amazon.com

Check prices at:

GeForce GTS 450

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 GTS (G80) 320MB GeForce GTS 450
Manufacturer nVidia nVidia
Year Feb 2007 September 2010
Code Name G80 GF106
Memory 320 MB 512 MB
Core Speed 513 MHz 783 MHz
Memory Speed 1584 MHz 3608 MHz
Power (Max TDP) 143 watts 106 watts
Bandwidth 63360 MB/sec 57728 MB/sec
Texel Rate 24624 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 96 192
Texture Mapping Units 48 32
Render Output Units 20 16
Bus Type GDDR3 GDDR5
Bus Width 320-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: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 can be applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

GeForce GTS 450

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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