NVIDIA A40 PCIe vs AMD Radeon HD 7970

VS

NVIDIA A40 PCIe

AMD Radeon HD 7970

We compared two Desktop platform GPUs: 48GB VRAM A40 PCIe and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

Released 8 years and 10 months late

Boost Clock1740MHz

More VRAM (48GB vs 3GB)

Larger VRAM bandwidth (695.8GB/s vs 264.0GB/s)

8704 additional rendering cores

AMD Radeon HD 7970 's Advantages

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

A40 PCIe +887%

37.42 TFLOPS

Radeon HD 7970

3.789 TFLOPS

A40 PCIe

VS

Radeon HD 7970

Graphics Card

Oct 2020

Release Date

Dec 2011

Tesla

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1305 MHz

Base Clock

-

1740 MHz

Boost Clock

-

1812 MHz

Memory Clock

1375 MHz

Memory

48GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

384bit

695.8GB/s

Bandwidth

264.0GB/s

Render Config

-

Compute Units

32

84

SM Count

-

10752

Shading Units

2048

336

TMUs

128

112

ROPs

32

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

768 KB

-

Theoretical Performance

194.9 GPixel/s

Pixel Rate

29.60 GPixel/s

584.6 GTexel/s

Texture Rate

118.4 GTexel/s

37.42 TFLOPS

FP16 (half)

-

37.42 TFLOPS

FP32 (float)

3.789 TFLOPS

584.6 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

3x DisplayPort 1.4a

Outputs

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

8-pin EPS

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GA102

GPU Name

Tahiti

-

GPU Variant

Tahiti XT (215-0821060)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

4.313 billion

628 mm²

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

5.1

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