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GeForce GTX 260 216SP 55 nm vs GeForce GTX 650

Intro

The GeForce GTX 260 216SP 55 nm makes use of a 55 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 RAM works at a frequency of 999 MHz on this specific card. It features 216 SPUs along with 72 TAUs and 28 Rasterization Operator Units.

Compare those specs to the GeForce GTX 650, which makes use of a 28 nm design. nVidia has set the core speed at 1058 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this particular card. It features 384 SPUs as well as 32 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 260 216SP 55 nm 171 Watts
Difference: 107 Watts (167%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 216SP 55 nm will be 40% faster than the GeForce GTX 650 overall, because of its higher bandwidth. (explain)

GeForce GTX 260 216SP 55 nm 111888 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 31888 (40%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is a lot (about 22%) better at AF than the GeForce GTX 650. (explain)

GeForce GTX 260 216SP 55 nm 41472 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 7616 (22%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 650 is a better choice, though not by far. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GTX 260 216SP 55 nm 16128 Mpixels/sec
Difference: 800 (5%)

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 GTX 260 216SP 55 nm

Amazon.com

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GeForce GTX 650

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 GTX 260 216SP 55 nm GeForce GTX 650
Manufacturer nVidia nVidia
Year December 22, 2008 September 2012
Code Name G200b GK107
Memory 896 MB 1024 MB
Core Speed 576 MHz 1058 MHz
Memory Speed 1998 MHz 5000 MHz
Power (Max TDP) 171 watts 64 watts
Bandwidth 111888 MB/sec 80000 MB/sec
Texel Rate 41472 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 216 384
Texture Mapping Units 72 32
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 1300 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 260 216SP 55 nm

Amazon.com

Check prices at:

GeForce GTX 650

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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