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GeForce 8600 GT 1GB GDDR3 vs GeForce GTX 650 Ti

Intro

The GeForce 8600 GT 1GB GDDR3 makes use of a 80 nm design. nVidia has clocked the core frequency at 540 MHz. The GDDR3 memory runs at a frequency of 700 MHz on this specific card. It features 32 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

Compare those specs to the GeForce GTX 650 Ti, which has core clock speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 memory. It features 768 SPUs as well as 64 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB GDDR3 47 Watts
GeForce GTX 650 Ti 110 Watts
Difference: 63 Watts (134%)

Memory Bandwidth

The GeForce GTX 650 Ti, in theory, should perform much faster than the GeForce 8600 GT 1GB GDDR3 in general. (explain)

GeForce GTX 650 Ti 86400 MB/sec
GeForce 8600 GT 1GB GDDR3 22400 MB/sec
Difference: 64000 (286%)

Texel Rate

The GeForce GTX 650 Ti will be a lot (approximately 587%) more effective at AF than the GeForce 8600 GT 1GB GDDR3. (explain)

GeForce GTX 650 Ti 59392 Mtexels/sec
GeForce 8600 GT 1GB GDDR3 8640 Mtexels/sec
Difference: 50752 (587%)

Pixel Rate

The GeForce GTX 650 Ti should be much (about 244%) faster with regards to FSAA than the GeForce 8600 GT 1GB GDDR3, and should be capable of handling higher resolutions better. (explain)

GeForce GTX 650 Ti 14848 Mpixels/sec
GeForce 8600 GT 1GB GDDR3 4320 Mpixels/sec
Difference: 10528 (244%)

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 8600 GT 1GB GDDR3

Amazon.com

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GeForce GTX 650 Ti

Amazon.com

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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 8600 GT 1GB GDDR3 GeForce GTX 650 Ti
Manufacturer nVidia nVidia
Year April 2007 October 2012
Code Name G84 GK106
Memory 1024 MB 1024 MB
Core Speed 540 MHz 928 MHz
Memory Speed 1400 MHz 5400 MHz
Power (Max TDP) 47 watts 110 watts
Bandwidth 22400 MB/sec 86400 MB/sec
Texel Rate 8640 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 32 768
Texture Mapping Units 16 64
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 80 nm 28 nm
Transistors 289 million 2540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 8600 GT 1GB GDDR3

Amazon.com

Check prices at:

GeForce GTX 650 Ti

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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