GeForce GTX 650 vs GeForce GTX 980 Ti

Intro

Compare all of that to the GeForce GTX 980 Ti, which features core clock speeds of 1000 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 memory. It features 2816 SPUs along with 176 Texture Address Units and 96 ROPs.

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 980 Ti		17120 points
GeForce GTX 650		2263 points
	Difference: 14857 (657%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 186 Watts (291%)

Memory Bandwidth

The GeForce GTX 980 Ti should theoretically be much faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 980 Ti		336000 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 256000 (320%)

Texel Rate

The GeForce GTX 980 Ti should be a lot (approximately 420%) more effective at AF than the GeForce GTX 650. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 142144 (420%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980 Ti is a better choice, and very much so. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 79072 (467%)

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 max amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.