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GeForce GTX 650 Ti 2GB vs Radeon HD 7750

Intro

The GeForce GTX 650 Ti 2GB has a GPU core speed of 928 MHz, and the 2048 MB of GDDR5 RAM runs at 1350 MHz through a 128-bit bus. It also is made up of 768 SPUs, 64 Texture Address Units, and 16 ROPs.

Compare that to the Radeon HD 7750, which features a clock speed of 800 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is comprised of 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce GTX 650 Ti 2GB 110 Watts
Difference: 55 Watts (100%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti 2GB should be 20% faster than the Radeon HD 7750 overall, due to its higher data rate. (explain)

GeForce GTX 650 Ti 2GB 86400 MB/sec
Radeon HD 7750 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The GeForce GTX 650 Ti 2GB is much (approximately 132%) faster with regards to AF than the Radeon HD 7750. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
Radeon HD 7750 25600 Mtexels/sec
Difference: 33792 (132%)

Pixel Rate

The GeForce GTX 650 Ti 2GB is a little bit (about 16%) more effective at anti-aliasing than the Radeon HD 7750, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Radeon HD 7750 12800 Mpixels/sec
Difference: 2048 (16%)

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 7750

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 7750
Manufacturer nVidia AMD
Year October 2012 February 2012
Code Name GK106 Cape Verde Pro
Memory 2048 MB 1024 MB
Core Speed 928 MHz 800 MHz
Memory Speed 5400 MHz 4500 MHz
Power (Max TDP) 110 watts 55 watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 59392 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 768 512
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 1500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 ability to get to the max fill rate.

Display Prices

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GeForce GTX 650 Ti 2GB

Amazon.com

Check prices at:

Radeon HD 7750

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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