ATI Radeon HD 3870 Mac Edition vs NVIDIA A40 PCIe

VS

ATI Radeon HD 3870 Mac Edition

NVIDIA A40 PCIe

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages

Lower TDP (106W vs 300W)

NVIDIA A40 PCIe 's Advantages

Released 12 years and 4 months late

Boost Clock1740MHz

More VRAM (48GB vs 512GB)

Larger VRAM bandwidth (695.8GB/s vs 72.06GB/s)

10432 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition

0.497 TFLOPS

A40 PCIe +7429%

37.42 TFLOPS

Radeon HD 3870 Mac Edition

VS

A40 PCIe

Graphics Card

Jun 2008

Release Date

Oct 2020

Radeon R600

Generation

Tesla

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1305 MHz

-

Boost Clock

1740 MHz

1126 MHz

Memory Clock

1812 MHz

Memory

512MB

Memory Size

48GB

GDDR4

Memory Type

GDDR6

256bit

Memory Bus

384bit

72.06GB/s

Bandwidth

695.8GB/s

Render Config

4

Compute Units

-

SM Count

84

320

Shading Units

10752

16

TMUs

336

16

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

194.9 GPixel/s

12.43 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

497.3 GFLOPS

FP32 (float)

37.42 TFLOPS

99.46 GFLOPS

FP64 (double)

584.6 GFLOPS

Board Design

106W

TDP

300W

300 W

Suggested PSU

700 W

2x DVI 1x S-Video

Outputs

3x DisplayPort 1.4a

1x 6-pin

Power Connectors

8-pin EPS

Graphics Processor

RV670

GPU Name

GA102

RV670 XT (215-0708005)

GPU Variant

-

TeraScale

Architecture

Ampere

TSMC

Foundry

Samsung

55 nm

Process Size

8 nm

0.666 billion

Transistors

28.3 billion

192 mm²

Die Size

628 mm²

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

4.1

Shader Model

6.6

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