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GeForce 8800 GTX vs GeForce GTX 465

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 all of that to the GeForce GTX 465, which comes with a clock frequency of 607 MHz and a GDDR5 memory frequency of 802 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 352 SPUs, 44 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTX 155 Watts
GeForce GTX 465 200 Watts
Difference: 45 Watts (29%)

Memory Bandwidth

Performance-wise, the GeForce GTX 465 should in theory be a little bit better than the GeForce 8800 GTX in general. (explain)

GeForce GTX 465 102592 MB/sec
GeForce 8800 GTX 86400 MB/sec
Difference: 16192 (19%)

Texel Rate

The GeForce 8800 GTX should be a lot (more or less 38%) better at anisotropic filtering than the GeForce GTX 465. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 10092 (38%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 465 is a better choice, and very much so. (explain)

GeForce GTX 465 19424 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 5624 (41%)

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 GTX 465

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 GTX 465
Manufacturer nVidia nVidia
Year Nov 2006 May 2010
Code Name G80 GF100
Memory 768 MB 1024 MB
Core Speed 575 MHz 607 MHz
Memory Speed 1800 MHz 3208 MHz
Power (Max TDP) 155 watts 200 watts
Bandwidth 86400 MB/sec 102592 MB/sec
Texel Rate 36800 Mtexels/sec 26708 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 19424 Mpixels/sec
Unified Shaders 128 352
Texture Mapping Units 64 44
Render Output Units 24 32
Bus Type GDDR3 GDDR5
Bus Width 384-bit 256-bit
Fab Process 90 nm 40 nm
Transistors 681 million 3000 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 (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 8800 GTX

Amazon.com

Check prices at:

GeForce GTX 465

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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