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GeForce GTX 460 SE vs Radeon HD 4890 2GB

Intro

The GeForce GTX 460 SE makes use of a 40 nm design. nVidia has set the core frequency at 650 MHz. The GDDR5 memory is set to run at a frequency of 850 MHz on this particular card. It features 288 SPUs along with 48 TAUs and 32 Rasterization Operator Units.

Compare all of that to the Radeon HD 4890 2GB, which comes with a core clock speed of 1000 MHz and a GDDR5 memory frequency of 975 MHz. It also uses a 256-bit memory bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE 150 Watts
Radeon HD 4890 2GB 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

In theory, the Radeon HD 4890 2GB will be 15% faster than the GeForce GTX 460 SE overall, due to its higher data rate. (explain)

Radeon HD 4890 2GB 124800 MB/sec
GeForce GTX 460 SE 108800 MB/sec
Difference: 16000 (15%)

Texel Rate

The Radeon HD 4890 2GB will be much (approximately 28%) better at AF than the GeForce GTX 460 SE. (explain)

Radeon HD 4890 2GB 40000 Mtexels/sec
GeForce GTX 460 SE 31200 Mtexels/sec
Difference: 8800 (28%)

Pixel Rate

The GeForce GTX 460 SE will be quite a bit (more or less 30%) better at AA than the Radeon HD 4890 2GB, and also able to handle higher resolutions more effectively. (explain)

GeForce GTX 460 SE 20800 Mpixels/sec
Radeon HD 4890 2GB 16000 Mpixels/sec
Difference: 4800 (30%)

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 460 SE

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 460 SE Radeon HD 4890 2GB
Manufacturer nVidia AMD
Year November 2010 Apr 2, 2009
Code Name GF104 RV790 XT
Memory 1024 MB 2048 MB
Core Speed 650 MHz 1000 MHz
Memory Speed 3400 MHz 3900 MHz
Power (Max TDP) 150 watts 190 watts
Bandwidth 108800 MB/sec 124800 MB/sec
Texel Rate 31200 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 288 800(160x5)
Texture Mapping Units 48 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 959 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 460 SE

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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