AMD Radeon HD 7970 X2 vs NVIDIA RTX A400

VS

AMD Radeon HD 7970 X2

NVIDIA RTX A400

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 96.00GB/s)

1280 additional rendering cores

NVIDIA RTX A400 's Advantages

Released 11 years and 8 months late

Boost Clock1762MHz

More VRAM (4GB vs 3GB)

Lower TDP (50W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +40%

3.789 TFLOPS

RTX A400

2.706 TFLOPS

Radeon HD 7970 X2

VS

RTX A400

Graphics Card

Aug 2012

Release Date

Apr 2024

Southern Islands

Generation

Quadro Ampere(Ax000)

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1417 MHz

-

Boost Clock

1762 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

-

SM Count

6

2048

Shading Units

768

128

TMUs

24

32

ROPs

16

-

Tensor Cores

24

-

RT Cores

6

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

28.19 GPixel/s

118.4 GTexel/s

Texture Rate

42.29 GTexel/s

-

FP16 (half)

2.706 TFLOPS

3.789 TFLOPS

FP32 (float)

2.706 TFLOPS

947.2 GFLOPS

FP64 (double)

42.29 GFLOPS

Board Design

500W

TDP

50W

900 W

Suggested PSU

250 W

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

Outputs

4x mini-DisplayPort 1.4a

3x 8-pin

Power Connectors

None

Graphics Processor

New Zealand

GPU Name

GA107

-

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

4.313 billion

Transistors

8.7 billion

352 mm²

Die Size

200 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

5.1

Shader Model

6.8

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