AMD Radeon R9 390 X2 vs NVIDIA A40 PCIe

VS

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

Released 5 years and 1 months late

Boost Clock1740MHz

More VRAM (48GB vs 8GB)

Larger VRAM bandwidth (695.8GB/s vs 345.6GB/s)

8192 additional rendering cores

Lower TDP (300W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2

5.12 TFLOPS

A40 PCIe +630%

37.42 TFLOPS

Radeon R9 390 X2

VS

A40 PCIe

Graphics Card

Sep 2015

Release Date

Oct 2020

Pirate 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

1350 MHz

Memory Clock

1812 MHz

Memory

8GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

384bit

345.6GB/s

Bandwidth

695.8GB/s

Render Config

-

SM Count

84

40

Compute Units

-

2560

Shading Units

10752

160

TMUs

336

64

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

6 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

194.9 GPixel/s

160.0 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

5.120 TFLOPS

FP32 (float)

37.42 TFLOPS

640.0 GFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

Grenada

GPU Name

GA102

Grenada PRO (215-0880030)

GPU Variant

-

GCN 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

6.2 billion

Transistors

28.3 billion

438 mm²

Die Size

628 mm²

Board Design

580W

TDP

300W

950 W

Suggested PSU

700 W

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

Outputs

3x DisplayPort 1.4a

4x 8-pin

Power Connectors

8-pin EPS

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

6.3

Shader Model

6.6

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