GeForce GTX 970 vs Geforce GTX 670

Intro

Compare those specs to the Geforce GTX 670, which has GPU core speed of 915 MHz, and 2048 MB of GDDR5 memory running at 1500 MHz through a 256-bit bus. It also features 1344 SPUs, 112 TAUs, and 32 ROPs.

Display Graphs

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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 970		10867 points
Geforce GTX 670		7351 points
	Difference: 3516 (48%)

Ethereum Mining Hash Rate

GeForce GTX 970		19 Mh/s
Geforce GTX 670		13 Mh/s
	Difference: 6 (46%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
Geforce GTX 670		170 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

The GeForce GTX 970 should theoretically be a bit faster than the Geforce GTX 670 in general. (explain)

GeForce GTX 970		224000 MB/sec
Geforce GTX 670		192000 MB/sec
	Difference: 32000 (17%)

Texel Rate

The GeForce GTX 970 should be just a bit (approximately 7%) faster with regards to AF than the Geforce GTX 670. (explain)

GeForce GTX 970		109200 Mtexels/sec
Geforce GTX 670		102480 Mtexels/sec
	Difference: 6720 (7%)

Pixel Rate

The GeForce GTX 970 is much (about 130%) faster with regards to FSAA than the Geforce GTX 670, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 970		67200 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 37920 (130%)

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

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units by the core 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video 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 Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.