AMD Radeon RX 580 vs AMD Radeon RX 6900 XT

VS

AMD Radeon RX 580

AMD Radeon RX 6900 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages

Lower TDP (185W vs 300W)

AMD Radeon RX 6900 XT 's Advantages

Released 3 years and 6 months late

Boost Clock has increased by 68% (2250MHz vs 1340MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 256.0GB/s)

2816 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580

6.175 TFLOPS

Radeon RX 6900 XT +273%

23.04 TFLOPS

3DMark Time Spy

Radeon RX 580

4362

Radeon RX 6900 XT +379%

20932

Shadow of the Tomb Raider 2160p

Radeon RX 580

17

Radeon RX 6900 XT +364%

79

Shadow of the Tomb Raider 1440p

Radeon RX 580

35

Radeon RX 6900 XT +305%

142

Shadow of the Tomb Raider 1080p

Radeon RX 580

50

Radeon RX 6900 XT +288%

194

Battlefield 5 2160p

Radeon RX 580

27

Radeon RX 6900 XT +322%

114

Battlefield 5 1440p

Radeon RX 580

54

Radeon RX 6900 XT +270%

200

Battlefield 5 1080p

Radeon RX 580

78

Radeon RX 6900 XT +157%

201

GTA 5 1440p

Radeon RX 580

60

Radeon RX 6900 XT +153%

152

Radeon RX 580

VS

Radeon RX 6900 XT

Graphics Card

Apr 2017

Release Date

Oct 2020

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1257 MHz

Base Clock

1825 MHz

1340 MHz

Boost Clock

2250 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

512.0GB/s

Render Config

36

Compute Units

80

-

2304

Shading Units

5120

144

TMUs

320

32

ROPs

128

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB per Array

2 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

42.88 GPixel/s

Pixel Rate

288.0 GPixel/s

193.0 GTexel/s

Texture Rate

720.0 GTexel/s

6.175 TFLOPS

FP16 (half)

46.08 TFLOPS

6.175 TFLOPS

FP32 (float)

23.04 TFLOPS

385.9 GFLOPS

FP64 (double)

1440 GFLOPS

Board Design

185W

TDP

300W

450 W

Suggested PSU

700 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Polaris 20

GPU Name

Navi 21

Polaris 20 XTX (215-0910038)

GPU Variant

Navi 21 XTX (215-121000167)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

5.7 billion

Transistors

26.8 billion

232 mm²

Die Size

520 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.5

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