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PowerColor RX 5700 XT Red Devil Review

Rating: 9.0.

Last updated on September 13th, 2019 at 11:52 am

Custom Navi graphics cards are coming thick and fast now. We’ve already looked at solutions from Sapphire and MSI, and today we turn to PowerColor with its RX 5700 XT Red Devil. The Red Devil series has long been popular with enthusiasts for its beefy coolers and custom PCBs, and the RX 5700 XT model in for review is no different – it sports a thick, triple-fan cooler and beefed-up power delivery alongside a factory overclocked core. With an MSRP of £449, is PowerColor onto a winner?

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One of the first things you’ll notice about the PowerColor RX 5700 XT Red Devil – apart from its sheer size – is the new colour-neutral design. The Red Devil cards, as the name suggests, have always had prominent red accents on the shroud but here PowerColor has toned things down significantly. The 5700 XT Red Devil is also the first of the series to sport any form of RGB lighting.

Aesthetics aside, PowerColor has applied a decent factory overclock to the card, with a rated game clock of 1905MHz. Alongside that, there is dual-BIOS functionality allowing users to choose between the ‘OC’ BIOS for maximum performance, or the ‘Silent’ BIOS for lower noise levels. This will be a focus of our review today.

 

 RX 5700 RX 5700 XT   RX Vega 56 RX Vega 64   Radeon VII
Architecture  Navi Navi Vega 10 Vega 10  Vega 20
Manufacturing Process  7nm 7nm 14nm 14nm  7nm
Transistor Count 10.3 billion 10.3 billion 12.5 billion 12.5 billion 13.2 billion
Die Size  251mm² 251mm² 486mm² 495mm² 331mm²
Compute Units  36 40 56 64  60
Stream Processors  2304 2560 3584 4096  3840
Base GPU Clock Up to 1465MHz Up to 1605MHz 1156 MHz 1274 MHz 1400 MHz
Game GPU Clock Up to 1625MHz Up to 1755MHz n/a n/a n/a
Boost GPU Clock Up to 1725MHz Up to 1905MHz 1471 MHz 1546 MHz  1750 MHz
Peak Engine Clock n/a n/a 1590 MHz  1630 MHz  1800 MHz
Peak SP Performance Up to 7.95 TFLOPS Up to 9.75 TFLOPS Up to 10.5 TFLOPS Up to 12.7 TFLOPS Up to 14.2 TFLOPS
Peak Half Precision Performance Up to 15.9 TFLOPS Up to 19.5 TFLOPS Up to 21.0 TFLOPS Up to 25.3 TFLOPS  Up to 28.1 TFLOPS
Peak Texture Fill-Rate Up to 248.4 GT/s Up to 304.8 GT/s  Up to 330.0 GT/s  Up to 395.8 GT/s  432.24 GT/s
ROPs 64 64 64 64  64
Peak Pixel Fill-Rate Up to 110.4 GP/s Up to 121.9 GP/s Up to 94.0 GP/s Up to 98.9 GP/s 115.26 GP/s
Memory 8GB GDDR6 8GB GDDR6 8GB HBM 8GB HBM 16GB HBM2
Memory Bandwidth 448 GB/s 448 GB/s 410 GB/s 483.8 GB/s  1 TB/s
Memory Interface  256-bit 256-bit 2048-bit 2048-bit  4096-bit
Board Power  185W 225W 210W 295W  300W

Diving into the core spec of the card, based on the 7nm Navi GPU, of course this 5700 XT has 40 Compute Units and 2560 Stream Processors, with 8GB of 14Gbps GDDR6 memory. We already mentioned the 1905MHz rated game clock, which is an increase of 150MHz over the reference card. Do bear in mind, however, that game clock is only the ‘expected’ GPU clock when gaming, and frequency is very dynamic with the new Navi cards. We will look at actual clock speed under load later in this review.

Another point to note is in regards to total board power. By default the card ships with the OC BIOS enabled, which has a 220W power target (interestingly 5W less than reference). By moving to the Silent BIOS, however, the card engages an 180W power target. PowerColor hasn’t disclosed clock speeds for the Red Devil using the Silent BIOS, but it’s a certainty that the card will run slower with 40W less power available to it – this is also something we will examine later in the review.

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