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GeForce GTX 560 Ti 448 vs Radeon HD 4850 X2 1GB

Intro

The GeForce GTX 560 Ti 448 uses a 40 nm design. nVidia has clocked the core frequency at 732 MHz. The GDDR5 memory is set to run at a speed of 900 MHz on this particular model. It features 448 SPUs as well as 56 Texture Address Units and 40 ROPs.

Compare that to the Radeon HD 4850 X2 1GB, which comes with core clock speeds of 625 MHz on the GPU, and 993 MHz on the 1024 MB of GDDR3 memory. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 448 210 Watts
Radeon HD 4850 X2 1GB 250 Watts
Difference: 40 Watts (19%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 will be 13% faster than the Radeon HD 4850 X2 1GB overall, because of its greater data rate. (explain)

GeForce GTX 560 Ti 448 144000 MB/sec
Radeon HD 4850 X2 1GB 127104 MB/sec
Difference: 16896 (13%)

Texel Rate

The Radeon HD 4850 X2 1GB will be much (approximately 22%) faster with regards to AF than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 4850 X2 1GB 50000 Mtexels/sec
GeForce GTX 560 Ti 448 40992 Mtexels/sec
Difference: 9008 (22%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, and very much so. (explain)

GeForce GTX 560 Ti 448 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 560 Ti 448

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 560 Ti 448 Radeon HD 4850 X2 1GB
Manufacturer nVidia AMD
Year December 2011 Nov 7, 2008
Code Name GF110 R700
Memory 1280 MB 1024 MB (x2)
Core Speed 732 MHz 625 MHz (x2)
Memory Speed 3600 MHz 1986 MHz (x2)
Power (Max TDP) 210 watts 250 watts
Bandwidth 144000 MB/sec 127104 MB/sec
Texel Rate 40992 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 448 800(160x5) (x2)
Texture Mapping Units 56 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 2.0 x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.2 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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 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 560 Ti 448

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.

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