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Radeon R9 390X 8G vs Radeon RX 580
Intro
The Radeon R9 390X 8G has a clock speed of 1050 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 512-bit bus, and uses a 28 nm design. It is comprised of 2816 SPUs, 176 TAUs, and 64 ROPs.Compare those specs to the Radeon RX 580, which makes use of a 14 nm design. AMD has clocked the core frequency at 1257 MHz. The GDDR5 RAM works at a frequency of 2000 MHz on this specific card. It features 2304 SPUs as well as 144 Texture Address Units and 32 ROPs.
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 RX 580 |
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13630 points |
| Radeon R9 390X 8G |
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13555 points |
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Zcash Mining Hash Rate
| Radeon R9 390X 8G |
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330 Sol/s |
| Radeon RX 580 |
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315 Sol/s |
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Ethereum Mining Hash Rate
| Radeon R9 390X 8G |
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32 Mh/s |
| Radeon RX 580 |
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28 Mh/s |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon RX 580 |
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185 Watts |
| Radeon R9 390X 8G |
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275 Watts |
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Memory Bandwidth
In theory, the Radeon R9 390X 8G should be 46% quicker than the Radeon RX 580 overall, because of its higher bandwidth. (explain)
| Radeon R9 390X 8G |
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384000 MB/sec |
| Radeon RX 580 |
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262144 MB/sec |
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Texel Rate
The Radeon R9 390X 8G is a little bit (about 2%) better at texture filtering than the Radeon RX 580. (explain)| Radeon R9 390X 8G |
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184800 Mtexels/sec |
| Radeon RX 580 |
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181008 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon R9 390X 8G is superior to the Radeon RX 580, by far. (explain)| Radeon R9 390X 8G |
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67200 Mpixels/sec |
| Radeon RX 580 |
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40224 Mpixels/sec |
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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
Radeon R9 390X 8GAmazon.com
Check prices at:
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Radeon RX 580Amazon.com
Check prices at:
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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
| Model | Radeon R9 390X 8G | Radeon RX 580 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | June 2015 | April 2017 |
| Code Name | Grenada XT | Polaris 20 |
| Memory | 8192 MB | 8192 MB |
| Core Speed | 1050 MHz | 1257 MHz |
| Memory Speed | 6000 MHz | 8000 MHz |
| Power (Max TDP) | 275 watts | 185 watts |
| Bandwidth | 384000 MB/sec | 262144 MB/sec |
| Texel Rate | 184800 Mtexels/sec | 181008 Mtexels/sec |
| Pixel Rate | 67200 Mpixels/sec | 40224 Mpixels/sec |
| Unified Shaders | 2816 | 2304 |
| Texture Mapping Units | 176 | 144 |
| Render Output Units | 64 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 512-bit | 256-bit |
| Fab Process | 28 nm | 14 nm |
| Transistors | 6200 million | 5700 million |
| Bus | PCIe 3.0 ×16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 12.0 | DirectX 12.0 |
| OpenGL Version | OpenGL 4.5 | OpenGL 4.5 |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number 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 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 could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon R9 390X 8GAmazon.com
Check prices at:
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Radeon RX 580Amazon.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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Comments
One Response to “Radeon R9 390X 8G vs Radeon RX 580”I have them both.
The 390 is a dual dissipation and the 580 is a triple dissipation model.
While the 580 obviously has an edge with three fans, my 390 runs pretty hot. But its actually considered normal for the card.
I'm liking the 580 design more, it can take the punishment but it has 256 vs 512 bus speed. This cut down is also what allows the 580 to stay cooler, but as a consequence you get 32 rops instead of 64 vs the 390.
It's much easier to overclock the 580 in case anyone is wondering. If you do pick one up make sure to get the triple dissipation model, dual models are not worth it. You obviously need a mid tower for this fyi. It uses a single connector vs the double for the 390.
The card currently comes in two distinct models one is their OC line the other is for 4k users, which is kind of stupid but that's how their selling it. I OC mine by 20% (4000mhz) it stays stable and quite around 50-60c in fact you don't notice much of a difference.