GeForce 840M vs Radeon RX 480

Intro

Compare all of that to the Radeon RX 480, which features GPU clock speed of 1120 MHz, and 8192 MB of GDDR5 memory set to run at 2000 MHz through a 256-bit bus. It also features 2304 Stream Processors, 144 TAUs, and 32 Raster Operation 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

Radeon RX 480		13349 points
GeForce 840M		1600 points
	Difference: 11749 (734%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 840M		30 Watts
Radeon RX 480		150 Watts
	Difference: 120 Watts (400%)

Memory Bandwidth

The Radeon RX 480 should in theory be quite a bit faster than the GeForce 840M in general. (explain)

Radeon RX 480		262144 MB/sec
GeForce 840M		16000 MB/sec
	Difference: 246144 (1538%)

Texel Rate

The Radeon RX 480 will be much (approximately 553%) better at anisotropic filtering than the GeForce 840M. (explain)

Radeon RX 480		161280 Mtexels/sec
GeForce 840M		24696 Mtexels/sec
	Difference: 136584 (553%)

Pixel Rate

The Radeon RX 480 is a lot (more or less 335%) faster with regards to AA than the GeForce 840M, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 480		35840 Mpixels/sec
GeForce 840M		8232 Mpixels/sec
	Difference: 27608 (335%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 number of pixels that the graphics chip 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 amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.