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GeForce GTX 560 Ti 448 vs Radeon HD 4870 2GB

Intro

The GeForce GTX 560 Ti 448 comes with a core clock speed of 732 MHz and a GDDR5 memory speed of 900 MHz. It also features a 320-bit memory bus, and uses a 40 nm design. It is comprised of 448 SPUs, 56 TAUs, and 40 ROPs.

Compare those specifications to the Radeon HD 4870 2GB, which comes with GPU core speed of 750 MHz, and 2048 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also 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)

Radeon HD 4870 2GB 150 Watts
GeForce GTX 560 Ti 448 210 Watts
Difference: 60 Watts (40%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti 448 should in theory be much better than the Radeon HD 4870 2GB overall. (explain)

GeForce GTX 560 Ti 448 144000 MB/sec
Radeon HD 4870 2GB 115200 MB/sec
Difference: 28800 (25%)

Texel Rate

The GeForce GTX 560 Ti 448 is a lot (about 37%) faster with regards to AF than the Radeon HD 4870 2GB. (explain)

GeForce GTX 560 Ti 448 40992 Mtexels/sec
Radeon HD 4870 2GB 30000 Mtexels/sec
Difference: 10992 (37%)

Pixel Rate

The GeForce GTX 560 Ti 448 is a lot (about 144%) faster with regards to full screen anti-aliasing than the Radeon HD 4870 2GB, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 560 Ti 448 29280 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 17280 (144%)

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.

Price Comparison

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GeForce GTX 560 Ti 448

Amazon.com

Check prices at:

Radeon HD 4870 2GB

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 2GB
Manufacturer nVidia AMD
Year December 2011 Jun 25, 2008
Code Name GF110 RV770 XT
Memory 1280 MB 2048 MB
Core Speed 732 MHz 750 MHz
Memory Speed 3600 MHz 3600 MHz
Power (Max TDP) 210 watts 150 watts
Bandwidth 144000 MB/sec 115200 MB/sec
Texel Rate 40992 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 448 800(160x5)
Texture Mapping Units 56 40
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 3000 million 956 million
Bus PCIe 2.0 x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.2 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs 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 many 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 2GB

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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