Gigabyte Radeon RX 5500 XT Gaming 8GB review

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Specs / boost and PCIe 4.0

The spec deck

In the table below we have segmented all-important denominators of the product compared to the current products available from AMD, it always paints a more clear picture of what to expect.


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Radeon 

RX 5700 XT

RX 5700

RX 5500 XT

RX 580

RX 480

RX 570

Fabrication Process

7 nm

7 nm

7nm

14 nm

14 nm

14 nm

GPU

Navi 10

Navi 10

Navi 14

Polaris 20 XTX

Polaris 10

Polaris 20 Pro

Shader procs

2,560

2,304

1,408

2,304

2,304

2,048

Graphics memory

8 GB GDDR6

8 GB GDDR6

4 GB / 8 GB GDDR6

4 GB / 8 GB GDDR5

4 GB / 8 GB GDDR5

4 GB / 8 GB GDDR5

Memory Clock

14.0 Gbps

14.0 Gbps

14.0 Gbps

8.0 Gbps

7.0 / 8.0 Gbps

7.0 Gbps

GPU Clock Max

1,905 MHz

1,725 MHz

1,845 MHz

1,340 MHz

1,267 MHz

1,244 MHz

Memory Bandwidth

448 Gb/s

448 Gb/s

224 Gb/s

224 Gb/s (4 GB)
256 Gb/s (8 GB)

224 Gb/s (4 GB)
256 Gb/s (8 GB)

224 Gb/s

Power Connectors

1 x 8-pin
1 x 6 pin

1 x 8-pin
1 x 6 pin

1 x 6-pin

1 x 6-pin

1 x 6-pin

1 x 6-pin

Form Factor

Dual slot

Dual slot

Dual slot

Dual slot

Dual slot

Dual slot

Freesync

 Yes

Yes

Yes

Yes

Yes

Yes

DirectX 12 Support

 Yes

Yes

Yes

Yes

Yes

Yes

  

Raytracing

Nope. Ever since the beginning, Raytracing was never mentioned in any presentation, the Navi cards do not have native hardware support for it, despite what the competition is doing. We do think (currently) that is an advantage for AMD, as they can fab smaller and less expensive silicon, making the product more affordable as to what NVIDIA is offering with the GeForce RTX series. AMD, however, has hinted that the NAVI GPUS to follow NAVI10 (Big Navi) will get some sort of hardware accelerated Raytracing functionality. But the general consensus is simple, the time is not right to go full on Raytracing and thus AMD sticks to an evolved unified shader engine.

    

PCI-Express Gen 4.0

That elephant in the room, PCIe 4.0. We’ve mentioned it already, AMD really wanted to be first with anything and everything PCI-Express 4.0. Yes, AMD has been making big bets with the 2019 products, one of them is making a strong and solid move to surpass the competition, with PCIe Gen 4.0.


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PCIe ss

Line Code

Transfer Rate

x1 Bandwidth

x4

x8

x16

1.0

8b/10b

2.5 GT/s

250 MB/s

1 GB/s

2 GB/s

4 GB/s

2.0

8b/10b

5 GT/s

500 MB/s

2 GB/s

4 GB/s

8 GB/s

3.0

128b/130b

8 GT/s

1 GB/s

4 GB/s

8 GB/s

16 GB/s

4.0

128b/130b

16 GT/s

2 GB/s

8 GB/s

16 GB/s

32 GB/s

5.0

128b/130b

32 GT/s

4 GB/s

16 GB/s

32 GB/s

64 GB/s


The 7nm AMD Radeon RX 5000-series gaming graphics card family featuring high-speed GDDR6 memory and support for the PCIe 4.0 interface, on a Ryzen 3000 proc, with X570 motherboard and, say, a Radeon 5700... you’ll be hard-pressed to run out of bandwidth as each lane gets doubled up in that bandwidth. Of course, there has been a recent PCI-Express Gen 5.0 announcement as well, for ease of mind I've already inserted it into the table. What benefits will you have at PCIe gen 4 with a graphics card? Absolutely nothing, really. Running PCIe 3.0 or 4.0 will not make a difference in performance as that PCIe Gen 3.0 x16 slot is not even loaded (bandwidth) more than a few percent.  

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