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

Intro

The GeForce 8800 GTS (G80) 320MB has a core clock frequency of 513 MHz and a GDDR3 memory frequency of 792 MHz. It also features a 320-bit memory bus, and makes use of a 90 nm design. It is made up of 96 SPUs, 48 Texture Address Units, and 20 ROPs.

Compare all that to the GeForce GTS 450, which has core speeds of 783 MHz on the GPU, and 902 MHz on the 512 MB of GDDR5 memory. It features 192 SPUs as well as 32 TAUs and 16 Rasterization Operator 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

Theoretically speaking, the GeForce 8800 GTS (G80) 320MB will be 10% quicker than the GeForce GTS 450 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTS 450 should be a small bit (more or less 2%) better at AF 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 will be a lot (more or less 22%) better at full screen anti-aliasing than the GeForce 8800 GTS (G80) 320MB, and capable of handling higher screen resolutions without slowing down too much. (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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on 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 potential to reach 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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