GeForce 820M vs Radeon R7 260X

Intro

Compare that to the Radeon R7 260X, which has a clock frequency of 1100 MHz and a GDDR5 memory frequency of 1625 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 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

Radeon R7 260X		4381 points
GeForce 820M		850 points
	Difference: 3531 (415%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M		15 Watts
Radeon R7 260X		115 Watts
	Difference: 100 Watts (667%)

Memory Bandwidth

Theoretically, the Radeon R7 260X should perform quite a bit faster than the GeForce 820M in general. (explain)

Radeon R7 260X		104000 MB/sec
GeForce 820M		16000 MB/sec
	Difference: 88000 (550%)

Texel Rate

The Radeon R7 260X should be quite a bit (approximately 435%) better at anisotropic filtering than the GeForce 820M. (explain)

Radeon R7 260X		61600 Mtexels/sec
GeForce 820M		11504 Mtexels/sec
	Difference: 50096 (435%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 260X is the winner, and very much so. (explain)

Radeon R7 260X		17600 Mpixels/sec
GeForce 820M		2876 Mpixels/sec
	Difference: 14724 (512%)

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 information (counted in MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video 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 colour 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 also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.