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GeForce 8600 GS (OEM) vs GeForce GTX 650

Intro

The GeForce 8600 GS (OEM) uses a 80 nm design. nVidia has clocked the core speed at 540 MHz. The DDR2 memory is set to run at a frequency of 400 MHz on this card. It features 32 SPUs along with 16 Texture Address Units and 8 ROPs.

Compare those specs to the GeForce GTX 650, which features GPU core speed of 1058 MHz, and 2048 MB of GDDR5 RAM running at 1250 MHz through a 128-bit bus. It also is made up of 384 Stream Processors, 32 Texture Address Units, and 16 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GS (OEM) 47 Watts
GeForce GTX 650 64 Watts
Difference: 17 Watts (36%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 should theoretically be much superior to the GeForce 8600 GS (OEM) in general. (explain)

GeForce GTX 650 80000 MB/sec
GeForce 8600 GS (OEM) 12800 MB/sec
Difference: 67200 (525%)

Texel Rate

The GeForce GTX 650 is much (about 292%) more effective at AF than the GeForce 8600 GS (OEM). (explain)

GeForce GTX 650 33856 Mtexels/sec
GeForce 8600 GS (OEM) 8640 Mtexels/sec
Difference: 25216 (292%)

Pixel Rate

The GeForce GTX 650 is a lot (about 292%) better at anti-aliasing than the GeForce 8600 GS (OEM), and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce 8600 GS (OEM) 4320 Mpixels/sec
Difference: 12608 (292%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 8600 GS (OEM)

Amazon.com

Other US-based stores

GeForce GTX 650

Amazon.com

Other US-based stores

Specifications

Model GeForce 8600 GS (OEM) GeForce GTX 650
Manufacturer nVidia nVidia
Year April 2007 September 2012
Code Name G84 GK107
Fab Process 80 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 256 MB 2048 MB
Core Speed 540 MHz 1058 MHz
Shader Speed 1180 MHz 1058 MHz
Memory Speed 400 MHz (800 MHz effective) 1250 MHz (5000 MHz effective)
Unified Shaders 32 384
Texture Mapping Units 16 32
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.0 OpenGL 4.3
Power (Max TDP) 47 watts 64 watts
Shader Model 4.0 5.0
Bandwidth 12800 MB/sec 80000 MB/sec
Texel Rate 8640 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 16928 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

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