AMD Radeon RX 6800 XT vs Intel Arc B580

VS

AMD Radeon RX 6800 XT

Intel Arc B580

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 12GB VRAM Arc B580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

More VRAM (16GB vs 12GB)

Larger VRAM bandwidth (512.0GB/s vs 456.0GB/s)

2048 additional rendering cores

Intel Arc B580 's Advantages

Released 4 years and 2 months late

Boost Clock has increased by 19% (2670MHz vs 2250MHz)

Lower TDP (190W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +51%

20.74 TFLOPS

Arc B580

13.67 TFLOPS

Radeon RX 6800 XT

VS

Arc B580

Graphics Card

Oct 2020

Release Date

Dec 2024

Navi II

Generation

Battlemage(Arc 5)

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1825 MHz

Base Clock

2670 MHz

2250 MHz

Boost Clock

2670 MHz

2000 MHz

Memory Clock

2375 MHz

Memory

16GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

512.0GB/s

Bandwidth

456.0GB/s

Render Config

72

Compute Units

-

4608

Shading Units

2560

288

TMUs

160

128

ROPs

80

-

Tensor Cores

160

72

RT Cores

20

128 KB per Array

L1 Cache

256 KB (per EU)

4 MB

L2 Cache

18 MB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

213.6 GPixel/s

648.0 GTexel/s

Texture Rate

427.2 GTexel/s

41.47 TFLOPS

FP16 (half)

27.34 TFLOPS

20.74 TFLOPS

FP32 (float)

13.67 TFLOPS

1296 GFLOPS

FP64 (double)

1.709 TFLOPS

Board Design

300W

TDP

190W

700 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.1a3x DisplayPort 2.1

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 21

GPU Name

BMG-G21

Navi 21 XT (215-121000177)

GPU Variant

SRPMF

RDNA 2.0

Architecture

Xe2

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

26.8 billion

Transistors

19.6 billion

520 mm²

Die Size

272 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.4

-

6.5

Shader Model

6.6

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