GeForce 820M vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which has core speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 RAM. It features 768 SPUs along with 64 Texture Address Units and 16 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 650 Ti		3434 points
GeForce 820M		850 points
	Difference: 2584 (304%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M		15 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 95 Watts (633%)

Memory Bandwidth

The GeForce GTX 650 Ti should theoretically perform a lot faster than the GeForce 820M in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce 820M		16000 MB/sec
	Difference: 70400 (440%)

Texel Rate

The GeForce GTX 650 Ti will be much (more or less 416%) faster with regards to texture filtering than the GeForce 820M. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce 820M		11504 Mtexels/sec
	Difference: 47888 (416%)

Pixel Rate

The GeForce GTX 650 Ti will be much (about 416%) faster with regards to full screen anti-aliasing than the GeForce 820M, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce 820M		2876 Mpixels/sec
	Difference: 11972 (416%)

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 maximum amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.