AMD Radeon R9 285X vs NVIDIA A40 PCIe

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X 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 285X 's Advantages

Lower TDP (200W vs 300W)

NVIDIA A40 PCIe 's Advantages

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 R9 285X

4.104 TFLOPS

A40 PCIe +811%

37.42 TFLOPS

Radeon R9 285X

VS

A40 PCIe

Graphics Card

Unknown

Release Date

Oct 2020

Volcanic 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

32.06 GPixel/s

Pixel Rate

194.9 GPixel/s

128.3 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

4.104 TFLOPS

FP32 (float)

37.42 TFLOPS

-

FP64 (double)

584.6 GFLOPS

Graphics Processor

Tonga

GPU Name

GA102

Tonga XT (215-0851313)

GPU Variant

-

GCN 3.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

5 billion

Transistors

28.3 billion

366 mm²

Die Size

628 mm²

Board Design

200W

TDP

300W

550 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 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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