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GeForce GTX 650 Ti vs Radeon HD 5850

Intro

The GeForce GTX 650 Ti comes with core clock speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 RAM. It features 768 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5850, which comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1440(288x5) SPUs along with 72 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 110 Watts
Radeon HD 5850 151 Watts
Difference: 41 Watts (37%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5850 should be 48% faster than the GeForce GTX 650 Ti in general, because of its greater data rate. (explain)

Radeon HD 5850 128000 MB/sec
GeForce GTX 650 Ti 86400 MB/sec
Difference: 41600 (48%)

Texel Rate

The GeForce GTX 650 Ti should be just a bit (about 14%) more effective at anisotropic filtering than the Radeon HD 5850. (explain)

GeForce GTX 650 Ti 59392 Mtexels/sec
Radeon HD 5850 52200 Mtexels/sec
Difference: 7192 (14%)

Pixel Rate

The Radeon HD 5850 is much (more or less 56%) faster with regards to AA than the GeForce GTX 650 Ti, and also will be able to handle higher resolutions better. (explain)

Radeon HD 5850 23200 Mpixels/sec
GeForce GTX 650 Ti 14848 Mpixels/sec
Difference: 8352 (56%)

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 650 Ti

Amazon.com

Check prices at:

Radeon HD 5850

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 650 Ti Radeon HD 5850
Manufacturer nVidia AMD
Year October 2012 September 30, 2009
Code Name GK106 Cypress PRO
Memory 1024 MB 1024 MB
Core Speed 928 MHz 725 MHz
Memory Speed 5400 MHz 4000 MHz
Power (Max TDP) 110 watts 151 watts
Bandwidth 86400 MB/sec 128000 MB/sec
Texel Rate 59392 Mtexels/sec 52200 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 23200 Mpixels/sec
Unified Shaders 768 1440(288x5)
Texture Mapping Units 64 72
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 40 nm
Transistors 2540 million 2154 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 650 Ti

Amazon.com

Check prices at:

Radeon HD 5850

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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