GeForce 840M vs Radeon RX 460

Intro

Compare that to the Radeon RX 460, which comes with a GPU core clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 TAUs, 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 RX 460		5595 points
GeForce 840M		1600 points
	Difference: 3995 (250%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 840M		30 Watts
Radeon RX 460		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

In theory, the Radeon RX 460 will be 600% faster than the GeForce 840M in general, due to its greater bandwidth. (explain)

Radeon RX 460		112000 MB/sec
GeForce 840M		16000 MB/sec
	Difference: 96000 (600%)

Texel Rate

The Radeon RX 460 is quite a bit (about 147%) better at AF than the GeForce 840M. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce 840M		24696 Mtexels/sec
	Difference: 36344 (147%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 460 is the winner, by a large margin. (explain)

Radeon RX 460		17440 Mpixels/sec
GeForce 840M		8232 Mpixels/sec
	Difference: 9208 (112%)

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 maximum amount of data (in units of MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 bandwidth is, the lower the potential to get to the maximum fill rate.