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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 RAM runs at a speed of 850 MHz on this card. It features 288 SPUs as well as 48 TAUs and 32 Rasterization Operator Units.

Compare all that to the Radeon HD 4890 2GB, which has GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 memory set to run at 975 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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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

As far as performance goes, the Radeon HD 4890 2GB should in theory be a small bit better than the GeForce GTX 460 SE in general. (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 should be a lot (more or less 28%) faster with regards to 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 should be quite a bit (more or less 30%) faster with regards to FSAA than the Radeon HD 4890 2GB, and should be capable of handling higher screen 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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video 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 most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the 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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