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GeForce GTX 950 vs Radeon R9 390 8G

Intro

The GeForce GTX 950 comes with a core clock frequency of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 768 SPUs, 48 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon R9 390 8G, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this specific model. It features 2560 SPUs along with 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

Theoretically speaking, the Radeon R9 390 8G should be 263% quicker than the GeForce GTX 950 in general, because of its greater bandwidth. (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 quite a bit (approximately 226%) more effective at anisotropic 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

The Radeon R9 390 8G is much (more or less 95%) better at FSAA than the GeForce GTX 950, and will be capable of handling higher resolutions better. (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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum 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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