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GeForce GTX 260 vs GeForce GTX 460 (OEM)


Intro

The GeForce GTX 260 features a GPU core clock speed of 576 MHz, and the 896 MB of GDDR3 memory runs at 999 MHz through a 448-bit bus. It also features 192 Stream Processors, 64 Texture Address Units, and 28 ROPs.

Compare all of that to the GeForce GTX 460 (OEM), which comes with core clock speeds of 650 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 RAM. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

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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

As far as performance goes, the GeForce GTX 260 should theoretically be a bit superior to the GeForce GTX 460 (OEM) overall. (explain)

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

Texel Rate

The GeForce GTX 260 is a bit (more or less 1%) faster with regards to 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 high levels of AA is important to you, then the GeForce GTX 460 (OEM) is a better choice, and very much so. (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

GeForce GTX 260

GeForce GTX 460 (OEM)

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
Memory 896 MB 1024 MB
Core Speed 576 MHz 650 MHz
Memory Speed 1998 MHz 3400 MHz
Power (Max TDP) 182 watts 150 watts
Bandwidth 111888 MB/sec 108800 MB/sec
Texel Rate 36864 Mtexels/sec 36400 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 20800 Mpixels/sec
Unified Shaders 192 336
Texture Mapping Units 64 56
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 1950 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few 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.

GeForce GTX 260

GeForce GTX 460 (OEM)

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