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GeForce GTX 460 (OEM) vs Radeon HD 3850 X2

Intro

The GeForce GTX 460 (OEM) features a clock frequency of 650 MHz and a GDDR5 memory speed of 850 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 3850 X2, which comes with GPU core speed of 668 MHz, and 512 MB of GDDR3 memory running at 828 MHz through a 256-bit bus. It also features 320(64x5) SPUs, 16 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 460 (OEM) should theoretically perform a little bit faster than the Radeon HD 3850 X2 in general. (explain)

GeForce GTX 460 (OEM) 108800 MB/sec
Radeon HD 3850 X2 105984 MB/sec
Difference: 2816 (3%)

Texel Rate

The GeForce GTX 460 (OEM) should be much (more or less 70%) better at texture filtering than the Radeon HD 3850 X2. (explain)

GeForce GTX 460 (OEM) 36400 Mtexels/sec
Radeon HD 3850 X2 21376 Mtexels/sec
Difference: 15024 (70%)

Pixel Rate

The Radeon HD 3850 X2 is a small bit (more or less 3%) more effective at anti-aliasing than the GeForce GTX 460 (OEM), and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 3850 X2 21376 Mpixels/sec
GeForce GTX 460 (OEM) 20800 Mpixels/sec
Difference: 576 (3%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 3850 X2

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 3850 X2
Manufacturer nVidia AMD
Year October 2010 Apr 4, 2008
Code Name GF104 RV670 PRO
Memory 1024 MB 512 MB (x2)
Core Speed 650 MHz 668 MHz (x2)
Memory Speed 3400 MHz 1656 MHz (x2)
Power (Max TDP) 150 watts (Unknown) watts
Bandwidth 108800 MB/sec 105984 MB/sec
Texel Rate 36400 Mtexels/sec 21376 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 21376 Mpixels/sec
Unified Shaders 336 320(64x5) (x2)
Texture Mapping Units 56 16 (x2)
Render Output Units 32 16 (x2)
Bus Type GDDR5 GDDR3
Bus Width 256-bit 256-bit (x2)
Fab Process 40 nm 55 nm
Transistors 1950 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/(internal PCIe 1.1 x16)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 3850 X2

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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