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GeForce GTX 260 216SP 55 nm vs GeForce GTX 650

Intro

The GeForce GTX 260 216SP 55 nm features a core clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also uses a 448-bit memory bus, and makes use of a 55 nm design. It is comprised of 216 SPUs, 72 TAUs, and 28 Raster Operation Units.

Compare all of that to the GeForce GTX 650, which features core clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

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

The GeForce GTX 260 216SP 55 nm, in theory, should be quite a bit faster than the GeForce GTX 650 in general. (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 should be a lot (about 22%) more effective at texture filtering 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

The GeForce GTX 650 should be a small bit (about 5%) more effective at FSAA than the GeForce GTX 260 216SP 55 nm, and will be able to handle higher screen resolutions without losing too much performance. (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 max amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 max 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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