AMD Radeon RX 580 Overclocking and Benchmarks Unveiled – Clocked Up To 1500 MHz On Liquid Cooling
The first AMD Radeon RX 580 overclocking performance benchmarks are in, straight from Videocardz (via Lau Kin Liam). The benchmarks give us a first look at how well the refined Polaris GPU architecture is built to withstand some high overclocks.
AMD Radeon RX 580 Overclocking Benchmarks Under Liquid Cooling Leak Out
The card being tested here is the XFX Radeon RX 580 that uses a reference design. The overclocker used a custom waterblock to keep the card under liquid cooling while running the benchmarks. This overclocking session provides a detailed preview of how well the refreshed Polaris cards are designed to handle loads under overclock. The card was under liquid cooling so we shouldn't expect a lot of stress in regards to the temperatures or overheating.
The AMD Radeon RX 580 reference cards also come with a single 8-pin connector. This allows AMD to deliver more power to the GPU and electrical circuitry. Previously, reference Radeon RX 480 cards had to draw power from PCI Express connectors as the single 6-pin connector wasn't enough to feed the GPU. This resulted in PCI Express slots dying or affecting the entire motherboard. The controversy prompted AMD to release a new driver to decrease power draw of their Polaris 10 based cards.
AMD Radeon RX 580 Graphics Card Specifications:
The AMD Radeon RX 580 will be featuring a slightly higher clocked Polaris 10 GPU known as Polaris 20 XTX. So this is similar to many custom variants of the Radeon RX 480 that are available on the market. The card will feature all 2304 stream processors, 144 TMUs, 32 ROPs.
The chip itself will be clocked at 1340 MHz boost to deliver 6.17 TFLOPs of compute performance. Radeon RX 580 will be available in both 8 GB and 4 GB GDDR5 memory variants, clocking in at 8.0 GHz along a 256-bit bus interface. The card will pump out 256 GB/s bandwidth. The reference models will feature a single 8-pin power connector so we can determine 8+6 or 8+8 pin configurations on custom models. Expect pricing to be around the same range as custom Radeon RX 480 models, around $229– $279 US.
The XFX Radeon RX 580 was clocked at 1360 MHz so benchmarks at that speed are provided in the 3D Mark screenshots below.
AMD Radeon RX 580 (Reference Clock) 3DMark Scores:
AMD Radeon RX 580 Overclocking Performance Detailed
While the 8-pin connector should feed more power to the GPU for increased clock speeds, it seems like there's a 100-150 MHz headroom in terms of overclocking for the reference models. Custom models may offer better headroom but that remains to be seen as they are overclocked beyond 1400 MHz out of box as seen in our previous article.
While overclocking, the tester mentioned that Radeon WattMan overclocking utility ran him into several issues with the card. Increasing the power limit resulted in major issues so he had to increase the GPU voltage. Even doing that resulted in the GPU coming under the influence of the famous power bug that while helped increased the clock speeds to 1500 MHz, decreased the overall performance. The maximum stable overclock was at 1480 MHz with +12mV. You can see the several scores reported during the tests with different clock configs as per compiled by Videocardz in the table below.
AMD Radeon RX 580 Overclocking:
|Overclocking Configuration||3DMark TimeSpy Score|
|XFX Radeon RX 580 @ 1480/8500 (+12mV)||4664|
|XFX Radeon RX 580 @ 1500/8000 (+100mV)||4449|
|XFX Radeon RX 580 @ 1480/8000||4586|
|XFX Radeon RX 580 @ 1450/8000||4519|
|XFX Radeon RX 580 @ 1400/8000||4399|
|XFX Radeon RX 580 @ 1360/8000 (stock)||4311|
AMD's refreshed Polaris graphics card sure come with really high clock speeds and based on their price points, they can become really good offerings for the mainstream segment. The Radeon RX 500 cards will launch on 18th April and for more details, you can head over here.
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