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GeForce GTX 950 vs Radeon R9 390 8G

Intro

The GeForce GTX 950 features a GPU clock speed of 1024 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1652 MHz through a 128-bit bus. It also features 768 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.

Compare all of that to the Radeon R9 390 8G, which features a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It is comprised of 2560 SPUs, 160 TAUs, and 64 ROPs.

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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

In theory, the Radeon R9 390 8G should perform quite a bit faster than the GeForce GTX 950 overall. (explain)

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

Texel Rate

The Radeon R9 390 8G is a lot (more or less 226%) faster with regards to AF 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 using high levels of AA is important to you, then the Radeon R9 390 8G is the winner, and very much so. (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

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GeForce GTX 950

Amazon.com

Check prices at:

Radeon R9 390 8G

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 950 Radeon R9 390 8G
Manufacturer nVidia AMD
Year August 2015 June 2015
Code Name GM206 Grenada PRO
Memory 2048 MB 8192 MB
Core Speed 1024 MHz 1000 MHz
Memory Speed 6608 MHz 6000 MHz
Power (Max TDP) 90 watts 275 watts
Bandwidth 105728 MB/sec 384000 MB/sec
Texel Rate 49152 Mtexels/sec 160000 Mtexels/sec
Pixel Rate 32768 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 768 2560
Texture Mapping Units 48 160
Render Output Units 32 64
Bus Type GDDR5 GDDR5
Bus Width 128-bit 512-bit
Fab Process 28 nm 28 nm
Transistors 2940 million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 950

Amazon.com

Check prices at:

Radeon R9 390 8G

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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