AMD Radeon R9 280X vs NVIDIA A40 PCIe

VS

AMD Radeon R9 280X

NVIDIA A40 PCIe

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X 's Advantages

Lower TDP (250W vs 300W)

NVIDIA A40 PCIe 's Advantages

Released 7 years late

Boost Clock has increased by 74% (1740MHz vs 1000MHz)

More VRAM (48GB vs 3GB)

Larger VRAM bandwidth (695.8GB/s vs 288.0GB/s)

8704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 280X

4.096 TFLOPS

A40 PCIe +813%

37.42 TFLOPS

Radeon R9 280X

VS

A40 PCIe

Graphics Card

Oct 2013

Release Date

Oct 2020

Volcanic Islands

Generation

Tesla

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

850 MHz

Base Clock

1305 MHz

1000 MHz

Boost Clock

1740 MHz

1500 MHz

Memory Clock

1812 MHz

Memory

3GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

384bit

288.0GB/s

Bandwidth

695.8GB/s

Render Config

32

Compute Units

-

SM Count

84

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

32.00 GPixel/s

Pixel Rate

194.9 GPixel/s

128.0 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

4.096 TFLOPS

FP32 (float)

37.42 TFLOPS

1024 GFLOPS

FP64 (double)

584.6 GFLOPS

Board Design

250W

TDP

300W

600 W

Suggested PSU

700 W

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

Outputs

3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

8-pin EPS

Graphics Processor

Tahiti

GPU Name

GA102

Tahiti XTL (215-0821065)

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

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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