GeForce GTX 970M vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory works at a frequency of 1425 MHz on this particular model. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator 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 380 4G		8837 points
GeForce GTX 970M		7520 points
	Difference: 1317 (18%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon R9 380 4G		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 4G should theoretically be quite a bit better than the GeForce GTX 970M in general. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 86400 (90%)

Texel Rate

The Radeon R9 380 4G will be much (approximately 47%) more effective at AF than the GeForce GTX 970M. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 34720 (47%)

Pixel Rate

The GeForce GTX 970M should be quite a bit (about 43%) more effective at full screen anti-aliasing than the Radeon R9 380 4G, and should be capable of handling higher resolutions better. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R9 380 4G		31040 Mpixels/sec
	Difference: 13312 (43%)

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 information (in units of MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels the graphics card can possibly write 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.