AMD Radeon RX 6900 XTX vs Intel Arc B580

VS

AMD Radeon RX 6900 XTX

Intel Arc B580

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX 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 6900 XTX 's Advantages

More VRAM (16GB vs 12GB)

Larger VRAM bandwidth (576.0GB/s vs 456.0GB/s)

2560 additional rendering cores

Intel Arc B580 's Advantages

Boost Clock has increased by 10% (2670MHz vs 2435MHz)

Lower TDP (190W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +82%

24.93 TFLOPS

Arc B580

13.67 TFLOPS

Radeon RX 6900 XTX

VS

Arc B580

Graphics Card

Unknown

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

2075 MHz

Base Clock

2670 MHz

2435 MHz

Boost Clock

2670 MHz

2250 MHz

Memory Clock

2375 MHz

Memory

16GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

456.0GB/s

Render Config

80

Compute Units

-

5120

Shading Units

2560

320

TMUs

160

128

ROPs

80

-

Tensor Cores

160

80

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

311.7 GPixel/s

Pixel Rate

213.6 GPixel/s

779.2 GTexel/s

Texture Rate

427.2 GTexel/s

49.87 TFLOPS

FP16 (half)

27.34 TFLOPS

24.93 TFLOPS

FP32 (float)

13.67 TFLOPS

1.558 TFLOPS

FP64 (double)

1.709 TFLOPS

Board Design

330W

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 XTXH (215-121000247)

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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