GeForce GTX 295 vs Geforce GTX 680

Intro

The GeForce GTX 295 uses a 55 nm design. nVidia has clocked the core frequency at 576 MHz. The GDDR3 memory is set to run at a frequency of 999 MHz on this particular card. It features 240 SPUs as well as 80 Texture Address Units and 28 Rasterization Operator Units.

Compare all that to the Geforce GTX 680, which features GPU core speed of 1006 MHz, and 2048 MB of GDDR5 RAM running at 1502 MHz through a 256-bit bus. It also features 1536 Stream Processors, 128 Texture Address Units, and 32 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 295 Amazon.com Other US-based stores

Geforce GTX 680 Amazon.com Other US-based stores

Specifications

Model	GeForce GTX 295	Geforce GTX 680
Manufacturer	nVidia	nVidia
Year	January 8, 2009	March 2012
Code Name	G200b	GK104
Fab Process	55 nm	28 nm
Bus	PCIe x16 2.0	PCIe 3.0 x16
Memory	896 MB (x2)	2048 MB
Core Speed	576 MHz (x2)	1006 MHz
Shader Speed	1242 MHz (x2)	1006 MHz
Memory Speed	999 MHz (1998 MHz effective) (x2)	1502 MHz (6008 MHz effective)
Unified Shaders	240 (x2)	1536
Texture Mapping Units	80 (x2)	128
Render Output Units	28 (x2)	32
Bus Type	GDDR3	GDDR5
Bus Width	448-bit (x2)	256-bit
DirectX Version	DirectX 10	DirectX 11.1
OpenGL Version	OpenGL 3.1	OpenGL 4.2
Power (Max TDP)	289 watts	195 watts
Shader Model	4.0	5.0
Bandwidth	223776 MB/sec	192256 MB/sec
Texel Rate	92160 Mtexels/sec	128768 Mtexels/sec
Pixel Rate	32256 Mpixels/sec	32192 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the 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 the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.