AMD Radeon RX 6900 XT vs AMD Radeon RX 580

VS

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

Main Differences

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

AMD Radeon RX 580 's Advantages

Lower TDP (185W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT +273%

23.04 TFLOPS

Radeon RX 580

6.175 TFLOPS

3DMark Time Spy

Radeon RX 6900 XT +379%

20915

Radeon RX 580

4359

Shadow of the Tomb Raider 2160p

Radeon RX 6900 XT +364%

79

Radeon RX 580

17

Shadow of the Tomb Raider 1440p

Radeon RX 6900 XT +305%

142

Radeon RX 580

35

Shadow of the Tomb Raider 1080p

Radeon RX 6900 XT +288%

194

Radeon RX 580

50

Battlefield 5 2160p

Radeon RX 6900 XT +322%

114

Radeon RX 580

27

Battlefield 5 1440p

Radeon RX 6900 XT +270%

200

Radeon RX 580

54

Battlefield 5 1080p

Radeon RX 6900 XT +157%

201

Radeon RX 580

78

GTA 5 1440p

Radeon RX 6900 XT +153%

152

Radeon RX 580

60

Radeon RX 6900 XT

VS

Radeon RX 580

Graphics Card

Oct 2020

Release Date

Apr 2017

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

1257 MHz

2250 MHz

Boost Clock

1340 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

256.0GB/s

Render Config

-

SM Count

-

80

Compute Units

36

5120

Shading Units

2304

320

TMUs

144

128

ROPs

32

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

2 MB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

42.88 GPixel/s

720.0 GTexel/s

Texture Rate

193.0 GTexel/s

46.08 TFLOPS

FP16 (half)

6.175 TFLOPS

23.04 TFLOPS

FP32 (float)

6.175 TFLOPS

1440 GFLOPS

FP64 (double)

385.9 GFLOPS

Graphics Processor

Navi 21

GPU Name

Polaris 20

Navi 21 XTX (215-121000167)

GPU Variant

Polaris 20 XTX (215-0910038)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

26.8 billion

Transistors

5.7 billion

520 mm²

Die Size

232 mm²

Board Design

300W

TDP

185W

700 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.4

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