GPU Comparison

A

AMD

RADEON

AMD Radeon 550X

CORE STATE Lexa

VRAM 2 GB

CLOCK SPEED 1218 MHz

TDP 50 W

BUS WIDTH 128 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2019

VS

A

AMD

RADEON

Radeon RX 6400

CORE STATE Navi 24

VRAM 4 GB

CLOCK SPEED 2321 MHz

TDP 53 W

BUS WIDTH 64 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 6 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

8,749

32,977

3dmark_3dmark_steel_nomad_dx12

N/A

176

geekbench_vulkan

N/A

38,040

passmark_directx_10

N/A

54

passmark_directx_11

N/A

70

passmark_directx_12

N/A

30

passmark_directx_9

N/A

93

passmark_g2d

N/A

722

passmark_g3d

N/A

7,673

passmark_gpu_compute

N/A

2,812

DETAILED SPECIFICATIONS

SPECIFICATION

550X

RX 6400

Core Specs

Shading Units

512

768 +50.0%

Shaders

512

768 +50.0%

TMUs

32

48 +50.0%

ROPs

16

32 +100.0%

Compute Units

8

12 +50.0%

Clocks

Base Clock

1082 MHz

1923 MHz

Boost Clock

1218 MHz

2321 MHz

Game Clock

—

2039 MHz

Memory Clock

1750 MHz 7 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

2 GB

4 GB

VRAM (MB)

2,048

4,096 +100.0%

Memory Type

GDDR5

GDDR6

Memory Bus

128 bit

64 bit

Bandwidth

112.0 GB/s

128.0 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB per Array

L2 Cache

512 KB

1024 KB

L3 Cache

—

16 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

19.49 GPixel/s

74.27 GPixel/s

Texture Rate

38.98 GTexel/s

111.4 GTexel/s

FP32 (TFLOPS)

1,247.2 GFLOPS

3.565 TFLOPS

FP64 (TFLOPS)

77.95 GFLOPS (1:16)

222.8 GFLOPS (1:16)

FP16 (TFLOPS)

1,247.2 GFLOPS (1:1)

7.130 TFLOPS (2:1)

AI/RT

RT Cores

—

12

Power

TDP

50 W

53 W

TDP (W)

50

53 +6.0%

Suggested PSU

250 W

250 W

Power Connectors

None

None

Architecture

Architecture

GCN 4.0

RDNA 2.0

GPU Name

Lexa

Navi 24

Generation

Polaris (RX 500X)

Navi II (RX 6000)

Process Size

14 nm

6 nm

Transistors

2,200 million

5,400 million

Die Size

103 mm²

107 mm²

Foundry

GlobalFoundries

TSMC

Density

21.4M / mm²

50.5M / mm²

API Support

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.3

1.4

OpenCL

2.1

2.2

Shader Model

6.7

6.8

Physical

Slot Width

Dual-slot

Single-slot

Length

145 mm 5.7 inches

—

Outputs

1x DVI1x HDMI 2.0b1x DisplayPort 1.4a

1x HDMI 2.11x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x8

PCIe 4.0 x4

Other

Launch Price

—

159 USD

Production

End-of-life

End-of-life

Predecessor

Polaris

Navi

Successor

Vega

Navi III

View Radeon 550X Details View Radeon RX 6400 Details