AMD Radeon RX 6400 vs AMD Radeon HD 6970

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 2GB VRAM Radeon HD 6970 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 years and 1 months late

Boost Clock2321MHz

More VRAM (4GB vs 2GB)

Lower TDP (53W vs 250W)

AMD Radeon HD 6970 's Advantages

Larger VRAM bandwidth (176.0GB/s vs 128.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400 +31%

3.565 TFLOPS

Radeon HD 6970

2.703 TFLOPS

Radeon RX 6400

VS

Radeon HD 6970

Graphics Card

Jan 2022

Release Date

Dec 2010

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

1923 MHz

Base Clock

-

2321 MHz

Boost Clock

-

2000 MHz

Memory Clock

1375 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

256bit

128.0GB/s

Bandwidth

176.0GB/s

Render Config

-

SM Count

-

12

Compute Units

24

768

Shading Units

1536

48

TMUs

96

32

ROPs

32

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

28.16 GPixel/s

111.4 GTexel/s

Texture Rate

84.48 GTexel/s

7.130 TFLOPS

FP16 (half)

-

3.565 TFLOPS

FP32 (float)

2.703 TFLOPS

222.8 GFLOPS

FP64 (double)

675.8 GFLOPS

Graphics Processor

Navi 24

GPU Name

Cayman

Navi 24 XL (215-135000046)

GPU Variant

Cayman XT (215-0807007)

RDNA 2.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

2.64 billion

107 mm²

Die Size

389 mm²

Board Design

53W

TDP

250W

250 W

Suggested PSU

600 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

CUDA

-

6.6

Shader Model

5.0

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