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GeForce GTX 460 (OEM) vs Radeon HD 4870 2GB

Intro

The GeForce GTX 460 (OEM) features a core clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Compare that to the Radeon HD 4870 2GB, which features a GPU core clock speed of 750 MHz, and 2048 MB of GDDR5 RAM set to run at 900 MHz through a 256-bit bus. It also features 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the Radeon HD 4870 2GB should perform a small bit faster than the GeForce GTX 460 (OEM) overall. (explain)

Radeon HD 4870 2GB 115200 MB/sec
GeForce GTX 460 (OEM) 108800 MB/sec
Difference: 6400 (6%)

Texel Rate

The GeForce GTX 460 (OEM) will be much (about 21%) better at anisotropic filtering than the Radeon HD 4870 2GB. (explain)

GeForce GTX 460 (OEM) 36400 Mtexels/sec
Radeon HD 4870 2GB 30000 Mtexels/sec
Difference: 6400 (21%)

Pixel Rate

The GeForce GTX 460 (OEM) will be much (more or less 73%) better at AA than the Radeon HD 4870 2GB, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 8800 (73%)

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 (OEM)

Amazon.com

Check prices at:

Radeon HD 4870 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 (OEM) Radeon HD 4870 2GB
Manufacturer nVidia AMD
Year October 2010 Jun 25, 2008
Code Name GF104 RV770 XT
Memory 1024 MB 2048 MB
Core Speed 650 MHz 750 MHz
Memory Speed 3400 MHz 3600 MHz
Power (Max TDP) 150 watts 150 watts
Bandwidth 108800 MB/sec 115200 MB/sec
Texel Rate 36400 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 336 800(160x5)
Texture Mapping Units 56 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 956 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 max amount of information (measured in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 4870 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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