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GeForce GTX 260 Core 216 vs Radeon HD 4850 X2 512MB

Intro

The GeForce GTX 260 Core 216 comes with clock speeds of 576 MHz on the GPU, and 999 MHz on the 896 MB of GDDR3 RAM. It features 216 SPUs as well as 72 Texture Address Units and 28 ROPs.

Compare those specs to the Radeon HD 4850 X2 512MB, which features a core clock frequency of 625 MHz and a GDDR3 memory speed of 993 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 Core 216 202 Watts
Radeon HD 4850 X2 512MB 250 Watts
Difference: 48 Watts (24%)

Memory Bandwidth

Theoretically, the Radeon HD 4850 X2 512MB should perform a little bit faster than the GeForce GTX 260 Core 216 overall. (explain)

Radeon HD 4850 X2 512MB 127104 MB/sec
GeForce GTX 260 Core 216 111888 MB/sec
Difference: 15216 (14%)

Texel Rate

The Radeon HD 4850 X2 512MB will be a lot (about 21%) faster with regards to AF than the GeForce GTX 260 Core 216. (explain)

Radeon HD 4850 X2 512MB 50000 Mtexels/sec
GeForce GTX 260 Core 216 41472 Mtexels/sec
Difference: 8528 (21%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 4850 X2 512MB is superior to the GeForce GTX 260 Core 216, and very much so. (explain)

Radeon HD 4850 X2 512MB 20000 Mpixels/sec
GeForce GTX 260 Core 216 16128 Mpixels/sec
Difference: 3872 (24%)

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 260 Core 216

Amazon.com

Check prices at:

Radeon HD 4850 X2 512MB

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 260 Core 216 Radeon HD 4850 X2 512MB
Manufacturer nVidia AMD
Year September 16, 2008 Nov 7, 2008
Code Name G200 R700
Memory 896 MB 512 MB (x2)
Core Speed 576 MHz 625 MHz (x2)
Memory Speed 1998 MHz 1986 MHz (x2)
Power (Max TDP) 202 watts 250 watts
Bandwidth 111888 MB/sec 127104 MB/sec
Texel Rate 41472 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 216 800(160x5) (x2)
Texture Mapping Units 72 40 (x2)
Render Output Units 28 16 (x2)
Bus Type GDDR3 GDDR3
Bus Width 448-bit 256-bit (x2)
Fab Process 65 nm 55 nm
Transistors 1400 million 956 million
Bus PCIe x16 2.0 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core 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 also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 260 Core 216

Amazon.com

Check prices at:

Radeon HD 4850 X2 512MB

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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