GPU Comparison

A

AMD

RADEON

AMD 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

VS

A

AMD

RADEON

Radeon VII

CORE STATE Vega 20

VRAM 16 GB

CLOCK SPEED 1750 MHz

TDP 295 W

BUS WIDTH 4096 bit

ARCHITECTURE GCN 5.1

nm

PROCESS 7 nm

LAUNCH DATE 2019

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

176

2,304

geekbench_opencl

32,977

91,947

geekbench_vulkan

38,040

85,909

passmark_directx_10

54

N/A

passmark_directx_11

70

N/A

passmark_directx_12

30

N/A

passmark_directx_9

93

N/A

passmark_g2d

722

N/A

passmark_g3d

7,673

N/A

passmark_gpu_compute

2,812

N/A

geekbench_metal

N/A

77,265

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6400

VII

Core Specs

Shading Units

768

3,840 +400.0%

Shaders

768

3,840 +400.0%

TMUs

48

240 +400.0%

ROPs

32

64 +100.0%

Compute Units

12

60 +400.0%

Clocks

Base Clock

1923 MHz

1400 MHz

Boost Clock

2321 MHz

1750 MHz

Game Clock

2039 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1000 MHz 2 Gbps effective

Memory

Memory Size

4 GB

16 GB

VRAM (MB)

4,096

16,384 +300.0%

Memory Type

GDDR6

HBM2

Memory Bus

64 bit

4096 bit

Bandwidth

128.0 GB/s

1.02 TB/s

Cache

L1 Cache

128 KB per Array

16 KB (per CU)

L2 Cache

1024 KB

4 MB

L3 Cache

16 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

74.27 GPixel/s

112.0 GPixel/s

Texture Rate

111.4 GTexel/s

420.0 GTexel/s

FP32 (TFLOPS)

3.565 TFLOPS

13.44 TFLOPS

FP64 (TFLOPS)

222.8 GFLOPS (1:16)

3.360 TFLOPS (1:4)

FP16 (TFLOPS)

7.130 TFLOPS (2:1)

26.88 TFLOPS (2:1)

AI/RT

RT Cores

12

—

Power

TDP

53 W

295 W

TDP (W)

53

295 +456.6%

Suggested PSU

250 W

600 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

RDNA 2.0

GCN 5.1

GPU Name

Navi 24

Vega 20

Generation

Navi II (RX 6000)

Vega II (Radeon VII)

Process Size

6 nm

7 nm

Transistors

5,400 million

13,230 million

Die Size

107 mm²

331 mm²

Foundry

TSMC

TSMC

Density

50.5M / mm²

40.0M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.4

1.3

OpenCL

2.2

2.1

Shader Model

6.8

6.7

Physical

Slot Width

Single-slot

Dual-slot

Length

—

280 mm 11 inches

Height

—

125 mm 4.9 inches

Outputs

1x HDMI 2.11x DisplayPort 1.4a

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x4

PCIe 3.0 x16

Other

Launch Price

159 USD

699 USD

Production

End-of-life

End-of-life

Predecessor

Navi

Vega

Successor

Navi III

Navi

View Radeon RX 6400 Details View Radeon VII Details