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GeForce GTX 470 vs GeForce GTX 560 Ti 448

Intro

The GeForce GTX 470 features a clock speed of 607 MHz and a GDDR5 memory speed of 837 MHz. It also uses a 320-bit memory bus, and makes use of a 40 nm design. It is made up of 448 SPUs, 56 TAUs, and 40 Raster Operation Units.

Compare those specifications to the GeForce GTX 560 Ti 448, which makes use of a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 RAM works at a speed of 900 MHz on this particular card. It features 448 SPUs along with 56 TAUs and 40 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 560 Ti 448		4200 points
GeForce GTX 470		2937 points
	Difference: 1263 (43%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 448		210 Watts
GeForce GTX 470		215 Watts
	Difference: 5 Watts (2%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should in theory be a small bit better than the GeForce GTX 470 in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTX 470		133920 MB/sec
	Difference: 10080 (8%)

Texel Rate

The GeForce GTX 560 Ti 448 will be a lot (approximately 21%) more effective at texture filtering than the GeForce GTX 470. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
GeForce GTX 470		33992 Mtexels/sec
	Difference: 7000 (21%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 560 Ti 448 is superior to the GeForce GTX 470, by a large margin. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 470		24280 Mpixels/sec
	Difference: 5000 (21%)

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 470

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GeForce GTX 560 Ti 448

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Specifications

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Model	GeForce GTX 470	GeForce GTX 560 Ti 448
Manufacturer	nVidia	nVidia
Year	March 2010	December 2011
Code Name	GF100	GF110
Memory	1280 MB	1280 MB
Core Speed	607 MHz	732 MHz
Memory Speed	3348 MHz	3600 MHz
Power (Max TDP)	215 watts	210 watts
Bandwidth	133920 MB/sec	144000 MB/sec
Texel Rate	33992 Mtexels/sec	40992 Mtexels/sec
Pixel Rate	24280 Mpixels/sec	29280 Mpixels/sec
Unified Shaders	448	448
Texture Mapping Units	56	56
Render Output Units	40	40
Bus Type	GDDR5	GDDR5
Bus Width	320-bit	320-bit
Fab Process	40 nm	40 nm
Transistors	3000 million	3000 million
Bus	PCIe x16	PCIe 2.0 x16
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.1	OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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

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