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GeForce GTX 560 Ti 448 vs Radeon HD 4890 2GB

Intro

The GeForce GTX 560 Ti 448 comes with core clock speeds of 732 MHz on the GPU, and 900 MHz on the 1280 MB of GDDR5 RAM. It features 448 SPUs along with 56 TAUs and 40 ROPs.

Compare those specifications to the Radeon HD 4890 2GB, which uses a 55 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM works at a frequency of 975 MHz on this particular model. 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)

Radeon HD 4890 2GB 190 Watts
GeForce GTX 560 Ti 448 210 Watts
Difference: 20 Watts (11%)

Memory Bandwidth

Theoretically, the GeForce GTX 560 Ti 448 should be a little bit faster than the Radeon HD 4890 2GB in general. (explain)

GeForce GTX 560 Ti 448 144000 MB/sec
Radeon HD 4890 2GB 124800 MB/sec
Difference: 19200 (15%)

Texel Rate

The GeForce GTX 560 Ti 448 is a small bit (approximately 2%) faster with regards to anisotropic filtering than the Radeon HD 4890 2GB. (explain)

GeForce GTX 560 Ti 448 40992 Mtexels/sec
Radeon HD 4890 2GB 40000 Mtexels/sec
Difference: 992 (2%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 560 Ti 448 is superior to the Radeon HD 4890 2GB, by far. (explain)

GeForce GTX 560 Ti 448 29280 Mpixels/sec
Radeon HD 4890 2GB 16000 Mpixels/sec
Difference: 13280 (83%)

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 4890 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 4890 2GB
Manufacturer nVidia AMD
Year December 2011 Apr 2, 2009
Code Name GF110 RV790 XT
Memory 1280 MB 2048 MB
Core Speed 732 MHz 1000 MHz
Memory Speed 3600 MHz 3900 MHz
Power (Max TDP) 210 watts 190 watts
Bandwidth 144000 MB/sec 124800 MB/sec
Texel Rate 40992 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 16000 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 959 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: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 texture map elements (texels) that can be processed in one second. This number 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 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 most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 560 Ti 448

Amazon.com

Check prices at:

Radeon HD 4890 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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