GeForce GTX 650 vs GeForce GTX 970M

Intro

Compare all of that to the GeForce GTX 970M, which comes with a GPU core clock speed of 924 MHz, and 3072 MB of GDDR5 memory running at 1000 MHz through a 192-bit bus. It also is comprised of 1280 SPUs, 80 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

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 970M		7520 points
GeForce GTX 650		2263 points
	Difference: 5257 (232%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 970M		75 Watts
	Difference: 11 Watts (17%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970M should be a small bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 16000 (20%)

Texel Rate

The GeForce GTX 970M should be quite a bit (approximately 118%) more effective at AF than the GeForce GTX 650. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 40064 (118%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 970M is a better choice, by far. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 27424 (162%)

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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.