AMD Radeon Pro W6400 vs ATI Radeon HD 3870 Mac Edition

VS

AMD Radeon Pro W6400

ATI Radeon HD 3870 Mac Edition

We compared two Desktop platform GPUs: 4GB VRAM Radeon Pro W6400 and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6400 's Advantages

Released 13 years and 7 months late

Boost Clock2331MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (112.0GB/s vs 72.06GB/s)

448 additional rendering cores

Lower TDP (50W vs 106W)

Score

Benchmark

FP32 (float)

Radeon Pro W6400 +620%

3.58 TFLOPS

Radeon HD 3870 Mac Edition

0.497 TFLOPS

Radeon Pro W6400

VS

Radeon HD 3870 Mac Edition

Graphics Card

Jan 2022

Release Date

Jun 2008

Radeon Pro

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

2331 MHz

Base Clock

-

2331 MHz

Boost Clock

-

1750 MHz

Memory Clock

1126 MHz

Memory

4GB

Memory Size

512MB

GDDR6

Memory Type

GDDR4

64bit

Memory Bus

256bit

112.0GB/s

Bandwidth

72.06GB/s

Render Config

12

Compute Units

4

-

768

Shading Units

320

48

TMUs

16

32

ROPs

16

-

12

RT Cores

-

128 KB per Array

L1 Cache

-

1024 KB

L2 Cache

256 KB

8 MB

L3 Cache

-

Theoretical Performance

74.59 GPixel/s

Pixel Rate

12.43 GPixel/s

111.9 GTexel/s

Texture Rate

12.43 GTexel/s

7.161 TFLOPS

FP16 (half)

-

3.580 TFLOPS

FP32 (float)

497.3 GFLOPS

223.8 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

50W

TDP

106W

250 W

Suggested PSU

300 W

2x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Navi 24

GPU Name

RV670

Navi 24 XL-W

GPU Variant

RV670 XT (215-0708005)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

6 nm

Process Size

55 nm

5.4 billion

Transistors

0.666 billion

107 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.6

Shader Model

4.1

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