Reviews Video Cards AMD Radeon RX 5700 XT and RX 5700 Video Card Review

AMD Radeon RX 5700 XT and RX 5700 Video Card Review

The Radeon RX 5700 XT and RX 5700 Specifications

This is topical overview of the new AMD Radeon RX 5700 Series consisting of the Radeon RX 5700 XT and Radeon RX 5700.  We will show more detailed specs below, but the top-level specs are as follows.  The Radeon RX 5700 XT is 7nm, has 40 Compute Units, 2560 Stream Processors, runs at 1905MHz Boost Clock, 1755MHz Game Clock and 1605MHz Base Clock.  It has 8GB of GDDR6 on a 256-bit bus at 14GHz providing 448GB/sec of bandwidth.  Board power is 225W and it supports PCIe 4.0.  The AMD Radeon RX 5700 is 7nm, has 36 Compute Units, 2304 Stream Processors, runs at 1725MHz Boost Clock, 1625MHz Game Clock and 1465MHz Base Clock.  It has 8GB of GDDR6 on a 256-bit bus at 14GHz providing 448GB/sec of bandwidth.  Board power is 180W and it supports PCIe 4.0.

The three-tier clock system is new.  Basically the “Boost” clock is the top-end clock potential, and it does vary per-chip. The workload is what determines how high it boosts.  The “Game” clock is a typical gaming workload and the clock speed you’ll achieve on average while gaming.  Finally, the “Base” clock is the lowest the GPU will run under a power virus type of workload.

Connectivity is an important topic for AMD, these video cards support DisplayPort 1.4 HDR with Display Stream Compression 1.2a.  The video cards also support HDMI 2.0b.  This allows 4K at 240Hz, 4K HDR at 120Hz and even 8K HDR at 60Hz.  The new video cards also have a new Radeon Media Engine capable of H.264 4K150/8K30 Decode and 4K90 Encode.  They also support H.265 4K60 Decode and 4K90 Encode as well as VP9 4K60 Decode. 

These video cards are the first to support PCI-Express 4.0 which increases bandwidth 2x vs. PCIe 3.0.  Technically the theoretical maximum bandwidth of PCIe 3.0 x16 is 15.7GB/sec.  With overhead and latency, it comes out to about 13GB/sec.  PCIe 4.0 x16 is theoretical maximum of 31.5GB/sec, but with overhead and latency is closer to 22GB/sec according to AMD.  You will need Ryzen 3000 CPU and X570 chipset to achieve this speed.  Otherwise these video cards will operate at PCIe 3.0 x16 speeds.

Video Card Specs

AMD Radeon RX 5700 XT and RX 5700 Specifications

Above you will find all the gritty details on the specifications.  You can see how the Radeon RX 5700 series compares to the Vega series.  The Radeon RX 5700 series are based on the new RDNA architecture.  This is how they can get away with lesser CUs yet better performance.  The AMD Radeon RX 5700 XT is priced exactly the same as the Radeon RX Vega 56, but performs at or above the level of the Radeon RX Vega 64.  The Radeon RX 5700 should perform at least as fast the Vega 56, but at a lesser price as well. 

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