AMD Radeon HD 7970 vs NVIDIA A40 PCIe

VS

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

Main Differences

AMD Radeon HD 7970 's Advantages

Lower TDP (250W vs 300W)

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

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

A40 PCIe +887%

37.42 TFLOPS

Radeon HD 7970

VS

A40 PCIe

Graphics Card

Dec 2011

Release Date

Oct 2020

Southern Islands

Generation

Tesla

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1305 MHz

-

Boost Clock

1740 MHz

1375 MHz

Memory Clock

1812 MHz

Memory

3GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

384bit

264.0GB/s

Bandwidth

695.8GB/s

Render Config

-

SM Count

84

32

Compute Units

-

2048

Shading Units

10752

128

TMUs

336

32

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

6 MB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

194.9 GPixel/s

118.4 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

3.789 TFLOPS

FP32 (float)

37.42 TFLOPS

947.2 GFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

Tahiti

GPU Name

GA102

Tahiti XT (215-0821060)

GPU Variant

-

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

4.313 billion

Transistors

28.3 billion

352 mm²

Die Size

628 mm²

Board Design

250W

TDP

300W

600 W

Suggested PSU

700 W

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

Outputs

3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

8-pin EPS

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

6.6

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