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GeForce GTX 560 Ti 448 vs Radeon HD 4870 X2

Intro

The GeForce GTX 560 Ti 448 comes with a GPU core clock speed of 732 MHz, and the 1280 MB of GDDR5 RAM runs at 900 MHz through a 320-bit bus. It also is comprised of 448 SPUs, 56 TAUs, and 40 ROPs.

Compare all of that to the Radeon HD 4870 X2, which has a clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 256-bit memory bus, and makes use of a 55 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 448 210 Watts
Radeon HD 4870 X2 350 Watts
Difference: 140 Watts (67%)

Memory Bandwidth

The Radeon HD 4870 X2 should in theory be a lot faster than the GeForce GTX 560 Ti 448 overall. (explain)

Radeon HD 4870 X2 230400 MB/sec
GeForce GTX 560 Ti 448 144000 MB/sec
Difference: 86400 (60%)

Texel Rate

The Radeon HD 4870 X2 will be quite a bit (about 46%) faster with regards to anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 4870 X2 60000 Mtexels/sec
GeForce GTX 560 Ti 448 40992 Mtexels/sec
Difference: 19008 (46%)

Pixel Rate

The GeForce GTX 560 Ti 448 will be quite a bit (more or less 22%) better at AA than the Radeon HD 4870 X2, and capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 560 Ti 448 29280 Mpixels/sec
Radeon HD 4870 X2 24000 Mpixels/sec
Difference: 5280 (22%)

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 4870 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 560 Ti 448 Radeon HD 4870 X2
Manufacturer nVidia AMD
Year December 2011 Aug 12, 2008
Code Name GF110 R700
Memory 1280 MB 1024 MB (x2)
Core Speed 732 MHz 750 MHz (x2)
Memory Speed 3600 MHz 3600 MHz (x2)
Power (Max TDP) 210 watts 350 watts
Bandwidth 144000 MB/sec 230400 MB/sec
Texel Rate 40992 Mtexels/sec 60000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 448 800(160x5) (x2)
Texture Mapping Units 56 40 (x2)
Render Output Units 40 16 (x2)
Bus Type GDDR5 GDDR5
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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 are applied per second. This figure is worked out by multiplying the total number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 560 Ti 448

Amazon.com

Check prices at:

Radeon HD 4870 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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