GeForce GTX 950 vs Radeon R9 390 8G

Intro

Compare those specs to the Radeon R9 390 8G, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory runs at a frequency of 1500 MHz on this model. It features 2560 SPUs along with 160 TAUs and 64 ROPs.

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 390 8G		12733 points
GeForce GTX 950		6536 points
	Difference: 6197 (95%)

Ethereum Mining Hash Rate

Radeon R9 390 8G		28 Mh/s
GeForce GTX 950		10 Mh/s
	Difference: 18 (180%)

Zcash Mining Hash Rate

Radeon R9 390 8G		326 Sol/s
GeForce GTX 950		155 Sol/s
	Difference: 171 (110%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
Radeon R9 390 8G		275 Watts
	Difference: 185 Watts (206%)

Memory Bandwidth

As far as performance goes, the Radeon R9 390 8G should theoretically be much superior to the GeForce GTX 950 in general. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 278272 (263%)

Texel Rate

The Radeon R9 390 8G should be much (about 226%) more effective at texture filtering than the GeForce GTX 950. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 110848 (226%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 390 8G is the winner, by a large margin. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTX 950		32768 Mpixels/sec
	Difference: 31232 (95%)

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 megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of 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 faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.