GeForce GTX 550 Ti vs GeForce GTX 650

Intro

The GeForce GTX 550 Ti makes use of a 40 nm design. nVidia has clocked the core speed at 900 MHz. The GDDR5 RAM runs at a speed of 1026 MHz on this card. It features 192 SPUs along with 32 Texture Address Units and 24 Rasterization Operator Units.

Compare those specs to the GeForce GTX 650, which has clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs as well as 32 TAUs and 16 ROPs.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 550 Ti Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 650 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 550 Ti	GeForce GTX 650
Manufacturer	nVidia	nVidia
Year	March 2011	September 2012
Code Name	GF116	GK107
Fab Process	40 nm	28 nm
Bus	PCIe 2.1 x16	PCIe 3.0 x16
Memory	1024 MB	2048 MB
Core Speed	900 MHz	1058 MHz
Shader Speed	1800 MHz	1058 MHz
Memory Speed	1026 MHz (4104 MHz effective)	1250 MHz (5000 MHz effective)
Unified Shaders	192	384
Texture Mapping Units	32	32
Render Output Units	24	16
Bus Type	GDDR5	GDDR5
Bus Width	192-bit	128-bit
DirectX Version	DirectX 11	DirectX 11.1
OpenGL Version	OpenGL 4.1	OpenGL 4.3
Power (Max TDP)	116 watts	64 watts
Shader Model	5.0	5.0
Bandwidth	98496 MB/sec	80000 MB/sec
Texel Rate	28800 Mtexels/sec	33856 Mtexels/sec
Pixel Rate	21600 Mpixels/sec	16928 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.