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GeForce 8800 GTS (G92) vs GeForce GTS 450

Intro

The GeForce 8800 GTS (G92) has a clock frequency of 650 MHz and a GDDR3 memory speed of 970 MHz. It also makes use of a 256-bit memory bus, and uses a 65 nm design. It is made up of 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Compare all that to the GeForce GTS 450, which comes with a core clock speed of 783 MHz and a GDDR5 memory frequency of 902 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It features 192 SPUs, 32 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 106 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 29 Watts (27%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTS (G92) is 8% faster than the GeForce GTS 450 overall, due to its greater bandwidth. (explain)

GeForce 8800 GTS (G92) 62080 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 4352 (8%)

Texel Rate

The GeForce 8800 GTS (G92) will be a lot (more or less 66%) faster with regards to texture filtering than the GeForce GTS 450. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
GeForce GTS 450 25056 Mtexels/sec
Difference: 16544 (66%)

Pixel Rate

The GeForce GTS 450 should be a small bit (more or less 20%) better at anti-aliasing than the GeForce 8800 GTS (G92), and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTS 450 12528 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 2128 (20%)

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 (G92)

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 (G92) GeForce GTS 450
Manufacturer nVidia nVidia
Year Dec 2007 September 2010
Code Name G92 GF106
Memory 512 MB 512 MB
Core Speed 650 MHz 783 MHz
Memory Speed 1940 MHz 3608 MHz
Power (Max TDP) 135 watts 106 watts
Bandwidth 62080 MB/sec 57728 MB/sec
Texel Rate 41600 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 128 192
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 1170 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at 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 the video card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

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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