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GeForce GTX 650 Ti 2GB vs Radeon HD 7790

Intro

The GeForce GTX 650 Ti 2GB comes with core speeds of 928 MHz on the GPU, and 1350 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs as well as 64 Texture Address Units and 16 ROPs.

Compare those specs to the Radeon HD 7790, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX 650 Ti 2GB 110 Watts
Difference: 25 Watts (29%)

Memory Bandwidth

Performance-wise, the Radeon HD 7790 should theoretically be a little bit superior to the GeForce GTX 650 Ti 2GB overall. (explain)

Radeon HD 7790 96000 MB/sec
GeForce GTX 650 Ti 2GB 86400 MB/sec
Difference: 9600 (11%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a bit (approximately 6%) more effective at texture filtering than the Radeon HD 7790. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 3392 (6%)

Pixel Rate

The Radeon HD 7790 should be a bit (more or less 8%) faster with regards to FSAA than the GeForce GTX 650 Ti 2GB, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 7790 16000 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 1152 (8%)

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 2GB

Amazon.com

Check prices at:

Radeon HD 7790

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 2GB Radeon HD 7790
Manufacturer nVidia AMD
Year October 2012 March 2013
Code Name GK106 Bonaire XT
Memory 2048 MB 1024 MB
Core Speed 928 MHz 1000 MHz
Memory Speed 5400 MHz 6000 MHz
Power (Max TDP) 110 watts 85 watts
Bandwidth 86400 MB/sec 96000 MB/sec
Texel Rate 59392 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 768 896
Texture Mapping Units 64 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 2080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video 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 video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 650 Ti 2GB

Amazon.com

Check prices at:

Radeon HD 7790

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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