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GeForce GTX 460 SE vs Radeon HD 4890 1GB

Intro

The GeForce GTX 460 SE uses a 40 nm design. nVidia has set the core speed at 650 MHz. The GDDR5 RAM works at a frequency of 850 MHz on this particular model. It features 288 SPUs along with 48 Texture Address Units and 32 ROPs.

Compare that to the Radeon HD 4890 1GB, which has core speeds of 1000 MHz on the GPU, and 975 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE 150 Watts
Radeon HD 4890 1GB 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

The Radeon HD 4890 1GB, in theory, should be a bit faster than the GeForce GTX 460 SE overall. (explain)

Radeon HD 4890 1GB 124800 MB/sec
GeForce GTX 460 SE 108800 MB/sec
Difference: 16000 (15%)

Texel Rate

The Radeon HD 4890 1GB should be quite a bit (more or less 28%) better at anisotropic filtering than the GeForce GTX 460 SE. (explain)

Radeon HD 4890 1GB 40000 Mtexels/sec
GeForce GTX 460 SE 31200 Mtexels/sec
Difference: 8800 (28%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 460 SE is a better choice, by far. (explain)

GeForce GTX 460 SE 20800 Mpixels/sec
Radeon HD 4890 1GB 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 1GB

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 1GB
Manufacturer nVidia AMD
Year November 2010 Apr 2, 2009
Code Name GF104 RV790 XT
Memory 1024 MB 1024 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 megabytes per second) that can be transported over 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 RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 can be applied per second. This number is calculated by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - 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 1GB

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.

Comments

One Response to “GeForce GTX 460 SE vs Radeon HD 4890 1GB”
Abbas says:

Game comparisons for these two cards please. FPS 🙂

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