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GeForce GTX 570 vs Radeon HD 4850 X2 1GB

Intro

The GeForce GTX 570 comes with a GPU core speed of 732 MHz, and the 1280 MB of GDDR5 memory is set to run at 950 MHz through a 320-bit bus. It also features 480 SPUs, 60 TAUs, and 40 Raster Operation Units.

Compare those specifications to the Radeon HD 4850 X2 1GB, which has a core clock speed of 625 MHz and a GDDR3 memory frequency of 993 MHz. It also uses a 256-bit memory 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 570 219 Watts
Radeon HD 4850 X2 1GB 250 Watts
Difference: 31 Watts (14%)

Memory Bandwidth

Performance-wise, the GeForce GTX 570 should in theory be a little bit superior to the Radeon HD 4850 X2 1GB in general. (explain)

GeForce GTX 570 152000 MB/sec
Radeon HD 4850 X2 1GB 127104 MB/sec
Difference: 24896 (20%)

Texel Rate

The Radeon HD 4850 X2 1GB should be a small bit (more or less 14%) faster with regards to texture filtering than the GeForce GTX 570. (explain)

Radeon HD 4850 X2 1GB 50000 Mtexels/sec
GeForce GTX 570 43920 Mtexels/sec
Difference: 6080 (14%)

Pixel Rate

The GeForce GTX 570 should be a lot (approximately 46%) more effective at full screen anti-aliasing than the Radeon HD 4850 X2 1GB, and capable of handling higher resolutions more effectively. (explain)

GeForce GTX 570 29280 Mpixels/sec
Radeon HD 4850 X2 1GB 20000 Mpixels/sec
Difference: 9280 (46%)

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 570

Amazon.com

Check prices at:

Radeon HD 4850 X2 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 570 Radeon HD 4850 X2 1GB
Manufacturer nVidia AMD
Year December 2010 Nov 7, 2008
Code Name GF110 R700
Memory 1280 MB 1024 MB (x2)
Core Speed 732 MHz 625 MHz (x2)
Memory Speed 3800 MHz 1986 MHz (x2)
Power (Max TDP) 219 watts 250 watts
Bandwidth 152000 MB/sec 127104 MB/sec
Texel Rate 43920 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 480 800(160x5) (x2)
Texture Mapping Units 60 40 (x2)
Render Output Units 40 16 (x2)
Bus Type GDDR5 GDDR3
Bus Width 320-bit 256-bit (x2)
Fab Process 40 nm 55 nm
Transistors 3000 million 956 million
Bus PCIe x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few 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 570

Amazon.com

Check prices at:

Radeon HD 4850 X2 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 570 vs Radeon HD 4850 X2 1GB”
Barett says:

I would love to see some Game Benchmarks for this comparison. I was thinking of upgrading, but idk if it is truly worth it yet.

Civ 5, and SC2 are the games I am most interested in.

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