GeForce 820M vs GeForce GTX 960

Intro

Compare all of that to the GeForce GTX 960, which has clock speeds of 1127 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 RAM. It features 1024 SPUs as well as 64 TAUs and 32 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 960		7627 points
GeForce 820M		850 points
	Difference: 6777 (797%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M		15 Watts
GeForce GTX 960		120 Watts
	Difference: 105 Watts (700%)

Memory Bandwidth

Performance-wise, the GeForce GTX 960 should theoretically be much superior to the GeForce 820M in general. (explain)

GeForce GTX 960		112000 MB/sec
GeForce 820M		16000 MB/sec
	Difference: 96000 (600%)

Texel Rate

The GeForce GTX 960 is a lot (more or less 527%) faster with regards to anisotropic filtering than the GeForce 820M. (explain)

GeForce GTX 960		72128 Mtexels/sec
GeForce 820M		11504 Mtexels/sec
	Difference: 60624 (527%)

Pixel Rate

The GeForce GTX 960 is quite a bit (about 1154%) more effective at FSAA than the GeForce 820M, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 960		36064 Mpixels/sec
GeForce 820M		2876 Mpixels/sec
	Difference: 33188 (1154%)

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 max amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.