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GeForce GTX 260 216SP 55 nm vs Radeon HD 4890 2GB

Intro

The GeForce GTX 260 216SP 55 nm has a core clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also makes use of a 448-bit memory bus, and makes use of a 55 nm design. It is made up of 216 SPUs, 72 Texture Address Units, and 28 ROPs.

Compare all of that to the Radeon HD 4890 2GB, which makes use of a 55 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory is set to run at a speed of 975 MHz on this model. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 216SP 55 nm 171 Watts
Radeon HD 4890 2GB 190 Watts
Difference: 19 Watts (11%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4890 2GB should theoretically be a bit better than the GeForce GTX 260 216SP 55 nm in general. (explain)

Radeon HD 4890 2GB 124800 MB/sec
GeForce GTX 260 216SP 55 nm 111888 MB/sec
Difference: 12912 (12%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be just a bit (about 4%) better at texture filtering than the Radeon HD 4890 2GB. (explain)

GeForce GTX 260 216SP 55 nm 41472 Mtexels/sec
Radeon HD 4890 2GB 40000 Mtexels/sec
Difference: 1472 (4%)

Pixel Rate

The GeForce GTX 260 216SP 55 nm will be a small bit (more or less 1%) better at FSAA than the Radeon HD 4890 2GB, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 260 216SP 55 nm 16128 Mpixels/sec
Radeon HD 4890 2GB 16000 Mpixels/sec
Difference: 128 (1%)

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

Check prices at:

Radeon HD 4890 2GB

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.

Specifications

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Model GeForce GTX 260 216SP 55 nm Radeon HD 4890 2GB
Manufacturer nVidia AMD
Year December 22, 2008 Apr 2, 2009
Code Name G200b RV790 XT
Memory 896 MB 2048 MB
Core Speed 576 MHz 1000 MHz
Memory Speed 1998 MHz 3900 MHz
Power (Max TDP) 171 watts 190 watts
Bandwidth 111888 MB/sec 124800 MB/sec
Texel Rate 41472 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 216 800(160x5)
Texture Mapping Units 72 40
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 55 nm
Transistors 1400 million 959 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially 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

Hide Prices

GeForce GTX 260 216SP 55 nm

Amazon.com

Check prices at:

Radeon HD 4890 2GB

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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