AMD Radeon RX 6400 vs NVIDIA CMP 40HX

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 8GB VRAM CMP 40HX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 11 months late

Boost Clock has increased by 41% (2321MHz vs 1650MHz)

Lower TDP (53W vs 185W)

NVIDIA CMP 40HX 's Advantages

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (448.0GB/s vs 128.0GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

CMP 40HX +113%

7.603 TFLOPS

Blender

Radeon RX 6400

325

CMP 40HX +298%

1294

Radeon RX 6400

VS

CMP 40HX

Graphics Card

Jan 2022

Release Date

Feb 2021

Navi II

Generation

Mining GPUs

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x16

Clock Speeds

1923 MHz

Base Clock

1470 MHz

2321 MHz

Boost Clock

1650 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

64bit

Memory Bus

256bit

128.0GB/s

Bandwidth

448.0GB/s

Render Config

-

SM Count

36

12

Compute Units

-

768

Shading Units

2304

48

TMUs

144

32

ROPs

64

-

Tensor Cores

288

12

RT Cores

36

128 KB per Array

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

4 MB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

105.6 GPixel/s

111.4 GTexel/s

Texture Rate

237.6 GTexel/s

7.130 TFLOPS

FP16 (half)

15.21 TFLOPS

3.565 TFLOPS

FP32 (float)

7.603 TFLOPS

222.8 GFLOPS

FP64 (double)

237.6 GFLOPS

Graphics Processor

Navi 24

GPU Name

TU106

Navi 24 XL (215-135000046)

GPU Variant

TU106-100-A1

RDNA 2.0

Architecture

Turing

TSMC

Foundry

TSMC

6 nm

Process Size

12 nm

5.4 billion

Transistors

10.8 billion

107 mm²

Die Size

445 mm²

Board Design

53W

TDP

185W

250 W

Suggested PSU

450 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

7.5

6.6

Shader Model

6.6

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