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GeForce GTX 560 Ti 448 vs Radeon HD 4870 2GB

Intro

The GeForce GTX 560 Ti 448 has a GPU clock speed of 732 MHz, and the 1280 MB of GDDR5 RAM is set to run at 900 MHz through a 320-bit bus. It also features 448 SPUs, 56 TAUs, and 40 ROPs.

Compare those specifications to the Radeon HD 4870 2GB, which has clock speeds of 750 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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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

Performance-wise, the GeForce GTX 560 Ti 448 should theoretically be quite a bit 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 will be quite a bit (approximately 37%) better at 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

If running with lots of anti-aliasing is important to you, then the GeForce GTX 560 Ti 448 is a better choice, by far. (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

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Radeon HD 4870 2GB

Amazon.com

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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 maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the 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 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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