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GeForce GTX 460 2GB vs GeForce GTX 970M

Intro

The GeForce GTX 460 2GB comes with a GPU core clock speed of 675 MHz, and the 2048 MB of GDDR5 memory is set to run at 900 MHz through a 256-bit bus. It also features 336 Stream Processors, 56 TAUs, and 32 ROPs.

Compare those specifications to the GeForce GTX 970M, which has core clock speeds of 924 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs and 48 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 85 Watts (113%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 2GB should be just a bit faster than the GeForce GTX 970M overall. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 19200 (20%)

Texel Rate

The GeForce GTX 970M will be quite a bit (more or less 96%) better at AF than the GeForce GTX 460 2GB. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 36120 (96%)

Pixel Rate

The GeForce GTX 970M is a lot (approximately 105%) faster with regards to FSAA than the GeForce GTX 460 2GB, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTX 460 2GB		21600 Mpixels/sec
	Difference: 22752 (105%)

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 460 2GB

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GeForce GTX 970M

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce GTX 460 2GB	GeForce GTX 970M
Manufacturer	nVidia	nVidia
Year	July 2010	October 7 2014
Code Name	GF104	GM204
Memory	2048 MB	3072 MB
Core Speed	675 MHz	924 MHz
Memory Speed	3600 MHz	4000 MHz
Power (Max TDP)	160 watts	75 watts
Bandwidth	115200 MB/sec	96000 MB/sec
Texel Rate	37800 Mtexels/sec	73920 Mtexels/sec
Pixel Rate	21600 Mpixels/sec	44352 Mpixels/sec
Unified Shaders	336	1280
Texture Mapping Units	56	80
Render Output Units	32	48
Bus Type	GDDR5	GDDR5
Bus Width	256-bit	192-bit
Fab Process	40 nm	28 nm
Transistors	1950 million	(Unknown) million
Bus	PCIe x16	PCIe 3.0 x16
DirectX Version	DirectX 11	DirectX 12
OpenGL Version	OpenGL 4.1	OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 max fill rate.

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