AMD Radeon RX 6400 vs NVIDIA T400

VS

AMD Radeon RX 6400

NVIDIA T400

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 2GB VRAM T400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 8 months late

Boost Clock has increased by 63% (2321MHz vs 1425MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 80.00GB/s)

384 additional rendering cores

NVIDIA T400 's Advantages

Lower TDP (30W vs 53W)

Score

Benchmark

FP32 (float)

Radeon RX 6400 +225%

3.565 TFLOPS

T400

1.094 TFLOPS

Radeon RX 6400

VS

T400

Graphics Card

Jan 2022

Release Date

May 2021

Navi II

Generation

Quadro

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x16

Clock Speeds

1923 MHz

Base Clock

420 MHz

2321 MHz

Boost Clock

1425 MHz

2000 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR6

64bit

Memory Bus

64bit

128.0GB/s

Bandwidth

80.00GB/s

Render Config

12

Compute Units

-

SM Count

6

768

Shading Units

384

48

TMUs

24

32

ROPs

16

-

12

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

1024 KB

16 MB

L3 Cache

-

Theoretical Performance

74.27 GPixel/s

Pixel Rate

22.80 GPixel/s

111.4 GTexel/s

Texture Rate

34.20 GTexel/s

7.130 TFLOPS

FP16 (half)

2.189 TFLOPS

3.565 TFLOPS

FP32 (float)

1094 GFLOPS

222.8 GFLOPS

FP64 (double)

34.20 GFLOPS

Board Design

53W

TDP

30W

250 W

Suggested PSU

200 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

3x mini-DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Navi 24

GPU Name

TU117

Navi 24 XL (215-135000046)

GPU Variant

-

RDNA 2.0

Architecture

Turing

TSMC

Foundry

TSMC

6 nm

Process Size

12 nm

5.4 billion

Transistors

4.7 billion

107 mm²

Die Size

200 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

7.5

6.7

Shader Model

6.6

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