GeForce 820M vs Radeon R7 260X

Intro

Compare those specs to the Radeon R7 260X, which comes with GPU clock speed of 1100 MHz, and 2048 MB of GDDR5 RAM running at 1625 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 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

As far as performance goes, the Radeon R7 260X should in theory be a lot superior to 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 is much (about 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 running with a high resolution is important to you, then the Radeon R7 260X is a better choice, 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: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred past the external memory interface in a second. The number 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 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.