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GeForce GTX 260 vs GeForce GTX 460 (OEM)

Intro

The GeForce GTX 260 has a GPU core speed of 576 MHz, and the 896 MB of GDDR3 memory is set to run at 999 MHz through a 448-bit bus. It also is comprised of 192 SPUs, 64 TAUs, and 28 Raster Operation Units.

Compare those specs to the GeForce GTX 460 (OEM), which comes with a GPU core clock speed of 650 MHz, and 1024 MB of GDDR5 RAM running at 850 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

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

As far as performance goes, the GeForce GTX 260 should in theory be just a bit better than 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 just a bit (about 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

The GeForce GTX 460 (OEM) should be a lot (more or less 29%) more effective at anti-aliasing than the GeForce GTX 260, and will be able to handle higher resolutions without slowing down too much. (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

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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 1998 MHz 3400 MHz
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 maximum amount of data (measured in megabytes per second) that can be transferred 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. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. 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 rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

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