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GeForce GTX 650 Ti vs Radeon HD 5750 1GB

Intro

The GeForce GTX 650 Ti features a GPU core clock speed of 928 MHz, and the 1024 MB of GDDR5 memory runs at 1350 MHz through a 128-bit bus. It also is comprised of 768 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the Radeon HD 5750 1GB, which features GPU clock speed of 700 MHz, and 1024 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) Stream Processors, 36 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 24 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti should be just a bit faster than the Radeon HD 5750 1GB overall. (explain)

GeForce GTX 650 Ti		86400 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 12800 (17%)

Texel Rate

The GeForce GTX 650 Ti is quite a bit (approximately 136%) better at anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 34192 (136%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 650 Ti is a better choice, by a large margin. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 3648 (33%)

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

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Radeon HD 5750 1GB

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Specifications

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Model	GeForce GTX 650 Ti	Radeon HD 5750 1GB
Manufacturer	nVidia	AMD
Year	October 2012	October 13, 2009
Code Name	GK106	Juniper LE
Memory	1024 MB	1024 MB
Core Speed	928 MHz	700 MHz
Memory Speed	5400 MHz	4600 MHz
Power (Max TDP)	110 watts	86 watts
Bandwidth	86400 MB/sec	73600 MB/sec
Texel Rate	59392 Mtexels/sec	25200 Mtexels/sec
Pixel Rate	14848 Mpixels/sec	11200 Mpixels/sec
Unified Shaders	768	720(144x5)
Texture Mapping Units	64	36
Render Output Units	16	16
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
Fab Process	28 nm	40 nm
Transistors	2540 million	1040 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 largest amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

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