GeForce GTX 650 vs GeForce GTX 970

Intro

Compare those specs to the GeForce GTX 970, which makes use of a 28 nm design. nVidia has clocked the core speed at 1050 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this card. It features 1664 SPUs along with 104 TAUs and 64 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 970		10867 points
GeForce GTX 650		2263 points
	Difference: 8604 (380%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 970		145 Watts
	Difference: 81 Watts (127%)

Memory Bandwidth

Theoretically, the GeForce GTX 970 should perform quite a bit faster than the GeForce GTX 650 in general. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 144000 (180%)

Texel Rate

The GeForce GTX 970 should be much (approximately 223%) faster with regards to AF than the GeForce GTX 650. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 75344 (223%)

Pixel Rate

The GeForce GTX 970 is a lot (about 297%) more effective at anti-aliasing than the GeForce GTX 650, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 50272 (297%)

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 (in units of megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated 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 a second.

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