AMD Radeon RX 6400 vs AMD Radeon RX Vega 64

VS

AMD Radeon RX 6400 AMD Radeon RX Vega 64

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 8GB VRAM Radeon RX Vega 64 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 4 years and 5 months late

Boost Clock has increased by 50% (2321MHz vs 1546MHz)

Lower TDP (53W vs 295W)

AMD Radeon RX Vega 64 's Advantages

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (483.8GB/s vs 128.0GB/s)

3328 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

Radeon RX Vega 64 +255%

12.66 TFLOPS

3DMark Time Spy

Radeon RX 6400

3579

Radeon RX Vega 64 +110%

7520

Blender

Radeon RX 6400

325

Radeon RX Vega 64 +139%

777

Shadow of the Tomb Raider 2160p

Radeon RX 6400

8

Radeon RX Vega 64 +287%

31

Shadow of the Tomb Raider 1440p

Radeon RX 6400

20

Radeon RX Vega 64 +210%

62

Shadow of the Tomb Raider 1080p

Radeon RX 6400

35

Radeon RX Vega 64 +162%

92

Battlefield 5 2160p

Radeon RX 6400

19

Radeon RX Vega 64 +200%

57

Battlefield 5 1440p

Radeon RX 6400

36

Radeon RX Vega 64 +163%

95

Battlefield 5 1080p

Radeon RX 6400

48

Radeon RX Vega 64 +168%

129

Radeon RX 6400

VS

Radeon RX Vega 64

Graphics Card

Jan 2022

Release Date

Aug 2017

Navi II

Generation

Vega

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x16

Clock Speeds

1923 MHz

Base Clock

1247 MHz

2321 MHz

Boost Clock

1546 MHz

2000 MHz

Memory Clock

945 MHz

Memory

4GB

Memory Size

8GB

GDDR6

Memory Type

HBM2

64bit

Memory Bus

2048bit

128.0GB/s

Bandwidth

483.8GB/s

Render Config

-

SM Count

-

12

Compute Units

64

768

Shading Units

4096

48

TMUs

256

32

ROPs

64

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

4 MB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

98.94 GPixel/s

111.4 GTexel/s

Texture Rate

395.8 GTexel/s

7.130 TFLOPS

FP16 (half)

25.33 TFLOPS

3.565 TFLOPS

FP32 (float)

12.66 TFLOPS

222.8 GFLOPS

FP64 (double)

791.6 GFLOPS

Graphics Processor

Navi 24

GPU Name

Vega 10

Navi 24 XL (215-135000046)

GPU Variant

Vega 10 XT (215-0894200)

RDNA 2.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

6 nm

Process Size

14 nm

5.4 billion

Transistors

12.5 billion

107 mm²

Die Size

495 mm²

Board Design

53W

TDP

295W

250 W

Suggested PSU

600 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2

-

CUDA

-

6.6

Shader Model

6.4

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