Radeon R9 M395X vs Radeon RX 460

Intro

Compare all of that to the Radeon RX 460, which has a GPU core clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon R9 M395X		125 Watts
	Difference: 50 Watts (67%)

Memory Bandwidth

Theoretically, the Radeon R9 M395X should be a lot faster than the Radeon RX 460 in general. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 48000 (43%)

Texel Rate

The Radeon R9 M395X is a lot (approximately 52%) more effective at anisotropic filtering than the Radeon RX 460. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 31504 (52%)

Pixel Rate

The Radeon R9 M395X should be a lot (about 33%) more effective at AA than the Radeon RX 460, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 5696 (33%)

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 data (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the 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 card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 ability to reach the max fill rate.