GeForce GTX 460 vs Radeon HD 5770

Intro

The GeForce GTX 460 has a clock speed of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 192-bit bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 24 ROPs.

Compare those specs to the Radeon HD 5770, which features a clock frequency of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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 460 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 5770 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 460	Radeon HD 5770
Manufacturer	nVidia	ATi
Year	July 2010	October 13, 2009
Code Name	GF104	Juniper XT
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	768 MB	1024 MB
Core Speed	675 MHz	850 MHz
Shader Speed	1350 MHz	(N/A) MHz
Memory Speed	900 MHz	1200 MHz
Unified Shaders	336	800(160x5)
Texture Mapping Units	56	40
Render Output Units	24	16
Bus Type	GDDR5	GDDR5
Bus Width	192-bit	128-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.1	OpenGL 3.2
Power (Max TDP)	150 watts	108 watts
Shader Model	5.0	5.0
Bandwidth	86400 MB/sec	76800 MB/sec
Texel Rate	37800 Mtexels/sec	34000 Mtexels/sec
Pixel Rate	16200 Mpixels/sec	13600 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.