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GeForce 8800 GTS (G92) vs GeForce GTX 650

Intro

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

Compare that to the GeForce GTX 650, which comes with GPU core speed of 1058 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 128-bit bus. It also features 384 Stream Processors, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 71 Watts (111%)

Memory Bandwidth

The GeForce GTX 650 should in theory perform a lot faster than the GeForce 8800 GTS (G92) overall. (explain)

GeForce GTX 650 80000 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 17920 (29%)

Texel Rate

The GeForce 8800 GTS (G92) is quite a bit (more or less 23%) more effective at texture filtering than the GeForce GTX 650. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 7744 (23%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 650 is superior to the GeForce 8800 GTS (G92), by far. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 6528 (63%)

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

GeForce 8800 GTS (G92)

GeForce GTX 650

Specifications

Display Specifications

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Model GeForce 8800 GTS (G92) GeForce GTX 650
Manufacturer nVidia nVidia
Year Dec 2007 September 2012
Code Name G92 GK107
Memory 512 MB 1024 MB
Core Speed 650 MHz 1058 MHz
Memory Speed 1940 MHz 5000 MHz
Power (Max TDP) 135 watts 64 watts
Bandwidth 62080 MB/sec 80000 MB/sec
Texel Rate 41600 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 128 384
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 754 million 1300 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 figure is worked out by multiplying the total amount of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

GeForce 8800 GTS (G92)

GeForce GTX 650

Comments

One Response to “GeForce 8800 GTS (G92) vs GeForce GTX 650”
Anonymous says:

thanks....really usefull information

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