GeForce GTX 650 vs GeForce GTX 970M

Intro

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

The GeForce GTX 970M should theoretically perform 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 much (approximately 118%) better at texture filtering than the GeForce GTX 650. (explain)

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

Pixel Rate

The GeForce GTX 970M should be a lot (approximately 162%) faster with regards to AA than the GeForce GTX 650, and will be able to handle higher screen resolutions without slowing down too much. (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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 processed per second. This 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.