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GeForce GTX 560 Ti vs Radeon HD 4650 1GB

Intro

The GeForce GTX 560 Ti uses a 40 nm design. nVidia has set the core frequency at 822 MHz. The GDDR5 RAM runs at a frequency of 1002 MHz on this particular model. It features 384 SPUs along with 64 TAUs and 32 ROPs.

Compare that to the Radeon HD 4650 1GB, which makes use of a 55 nm design. AMD has set the core frequency at 600 MHz. The GDDR3 memory works at a frequency of 700 MHz on this particular model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 1GB 55 Watts
GeForce GTX 560 Ti 170 Watts
Difference: 115 Watts (209%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti should in theory be much better than the Radeon HD 4650 1GB in general. (explain)

GeForce GTX 560 Ti 128256 MB/sec
Radeon HD 4650 1GB 22400 MB/sec
Difference: 105856 (473%)

Texel Rate

The GeForce GTX 560 Ti should be quite a bit (more or less 174%) faster with regards to anisotropic filtering than the Radeon HD 4650 1GB. (explain)

GeForce GTX 560 Ti 52608 Mtexels/sec
Radeon HD 4650 1GB 19200 Mtexels/sec
Difference: 33408 (174%)

Pixel Rate

The GeForce GTX 560 Ti will be a lot (more or less 448%) faster with regards to AA than the Radeon HD 4650 1GB, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti 26304 Mpixels/sec
Radeon HD 4650 1GB 4800 Mpixels/sec
Difference: 21504 (448%)

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

Amazon.com

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Radeon HD 4650 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 Radeon HD 4650 1GB
Manufacturer nVidia AMD
Year January 2011 Sep 10, 2008
Code Name GF114 RV730 PRO
Memory 1024 MB 1024 MB
Core Speed 822 MHz 600 MHz
Memory Speed 4008 MHz 1400 MHz
Power (Max TDP) 170 watts 55 watts
Bandwidth 128256 MB/sec 22400 MB/sec
Texel Rate 52608 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 26304 Mpixels/sec 4800 Mpixels/sec
Unified Shaders 384 320(64x5)
Texture Mapping Units 64 32
Render Output Units 32 8
Bus Type GDDR5 GDDR3
Bus Width 256-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 514 million
Bus PCIe x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 560 Ti

Amazon.com

Check prices at:

Radeon HD 4650 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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