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GeForce GTX 650 Ti vs Radeon HD 5850

Intro

The GeForce GTX 650 Ti uses a 28 nm design. nVidia has clocked the core frequency at 928 MHz. The GDDR5 memory runs at a frequency of 1350 MHz on this specific card. It features 768 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs 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 as well as 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

Performance-wise, the Radeon HD 5850 should theoretically be quite a bit better than the GeForce GTX 650 Ti overall. (explain)

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

Texel Rate

The GeForce GTX 650 Ti is just a bit (approximately 14%) better at AF 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 should be much (more or less 56%) faster with regards to AA than the GeForce GTX 650 Ti, and also capable of handling 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

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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 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: Bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential 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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