AMD Radeon RX 580 OEM vs AMD Radeon RX 6800 XT

VS

AMD Radeon RX 580 OEM

AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 OEM and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 OEM 's Advantages

Lower TDP (150W vs 300W)

AMD Radeon RX 6800 XT 's Advantages

Released 4 years and 4 months late

Boost Clock has increased by 78% (2250MHz vs 1266MHz)

More VRAM (16GB vs 8GB)

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

2304 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580 OEM

5.834 TFLOPS

Radeon RX 6800 XT +255%

20.74 TFLOPS

Radeon RX 580 OEM

VS

Radeon RX 6800 XT

Graphics Card

Jun 2016

Release Date

Oct 2020

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1120 MHz

Base Clock

1825 MHz

1266 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

72

-

2304

Shading Units

4608

144

TMUs

288

32

ROPs

128

-

RT Cores

72

16 KB (per CU)

L1 Cache

128 KB per Array

2 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

40.51 GPixel/s

Pixel Rate

288.0 GPixel/s

182.3 GTexel/s

Texture Rate

648.0 GTexel/s

5.834 TFLOPS

FP16 (half)

41.47 TFLOPS

5.834 TFLOPS

FP32 (float)

20.74 TFLOPS

364.6 GFLOPS

FP64 (double)

1296 GFLOPS

Board Design

150W

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 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Ellesmere

GPU Name

Navi 21

Polaris 10 XT (215-0876184)

GPU Variant

Navi 21 XT (215-121000177)

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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