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GeForce GTX 260 vs GeForce GTX 460 (OEM)

Intro

The GeForce GTX 260 has a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also makes use of a 448-bit memory bus, and makes use of a 65 nm design. It is comprised of 192 SPUs, 64 Texture Address Units, and 28 Raster Operation Units.

Compare that to the GeForce GTX 460 (OEM), which comes with core speeds of 650 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 RAM. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM) 150 Watts
GeForce GTX 260 182 Watts
Difference: 32 Watts (21%)

Memory Bandwidth

In theory, the GeForce GTX 260 is 3% faster than the GeForce GTX 460 (OEM) overall, because of its greater bandwidth. (explain)

GeForce GTX 260 111888 MB/sec
GeForce GTX 460 (OEM) 108800 MB/sec
Difference: 3088 (3%)

Texel Rate

The GeForce GTX 260 will be a small bit (approximately 1%) more effective at AF than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 260 36864 Mtexels/sec
GeForce GTX 460 (OEM) 36400 Mtexels/sec
Difference: 464 (1%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce GTX 260, by far. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
GeForce GTX 260 16128 Mpixels/sec
Difference: 4672 (29%)

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

Display Prices

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GeForce GTX 260

Amazon.com

GeForce GTX 460 (OEM)

Amazon.com

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

Display Specifications

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Model GeForce GTX 260 GeForce GTX 460 (OEM)
Manufacturer nVidia nVidia
Year June 16, 2008 October 2010
Code Name G200 GF104
Fab Process 65 nm 40 nm
Bus PCIe x16 2.0 PCIe x16
Memory 896 MB 1024 MB
Core Speed 576 MHz 650 MHz
Shader Speed 1242 MHz 1300 MHz
Memory Speed 999 MHz (1998 MHz effective) 850 MHz (3400 MHz effective)
Unified Shaders 192 336
Texture Mapping Units 64 56
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1
Power (Max TDP) 182 watts 150 watts
Shader Model 4.0 5.0
Bandwidth 111888 MB/sec 108800 MB/sec
Texel Rate 36864 Mtexels/sec 36400 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 20800 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

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