AMD Radeon RX 6900 XTX vs AMD Radeon R9 380X

VS

AMD Radeon RX 6900 XTX

AMD Radeon R9 380X

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 4GB VRAM Radeon R9 380X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 182.4GB/s)

3072 additional rendering cores

AMD Radeon R9 380X 's Advantages

Lower TDP (190W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +527%

24.93 TFLOPS

Radeon R9 380X

3.973 TFLOPS

Radeon RX 6900 XTX

VS

Radeon R9 380X

Graphics Card

Unknown

Release Date

Nov 2015

Navi II

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

1425 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

182.4GB/s

Render Config

80

Compute Units

32

-

5120

Shading Units

2048

320

TMUs

128

ROPs

32

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

31.04 GPixel/s

779.2 GTexel/s

Texture Rate

124.2 GTexel/s

49.87 TFLOPS

FP16 (half)

3.973 TFLOPS

24.93 TFLOPS

FP32 (float)

3.973 TFLOPS

1.558 TFLOPS

FP64 (double)

248.3 GFLOPS

Board Design

330W

TDP

190W

700 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 21

GPU Name

Antigua

Navi 21 XTXH (215-121000247)

GPU Variant

Antigua XT (215-0877016)

RDNA 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

5 billion

520 mm²

Die Size

366 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.5

Shader Model

6.3

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