GeForce GTX 860M vs Radeon R9 380X

Intro

Compare those specifications to the Radeon R9 380X, which features a GPU core clock speed of 970 MHz, and 4096 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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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 R9 380X		9519 points
GeForce GTX 860M		4340 points
	Difference: 5179 (119%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon R9 380X		190 Watts
	Difference: 145 Watts (322%)

Memory Bandwidth

In theory, the Radeon R9 380X should perform much faster than the GeForce GTX 860M in general. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 118400 (185%)

Texel Rate

The Radeon R9 380X is a lot (about 62%) better at AF than the GeForce GTX 860M. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 860M		76512 Mtexels/sec
	Difference: 47648 (62%)

Pixel Rate

The Radeon R9 380X is much (about 143%) more effective at anti-aliasing than the GeForce GTX 860M, and also will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 18288 (143%)

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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.