AMD Radeon Pro W6800X vs AMD Radeon HD 7870 GHz Edition

VS

AMD Radeon Pro W6800X

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800X 's Advantages

Released 9 years and 5 months late

Boost Clock2087MHz

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 153.6GB/s)

2560 additional rendering cores

AMD Radeon HD 7870 GHz Edition 's Advantages

Lower TDP (175W vs 200W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X +526%

16.03 TFLOPS

Radeon HD 7870 GHz Edition

2.56 TFLOPS

Radeon Pro W6800X

VS

Radeon HD 7870 GHz Edition

Graphics Card

Aug 2021

Release Date

Mar 2012

Radeon Pro Mac

Generation

Southern Islands

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

-

2087 MHz

Boost Clock

-

2000 MHz

Memory Clock

1200 MHz

Memory

32GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

153.6GB/s

Render Config

60

Compute Units

20

-

3840

Shading Units

1280

240

TMUs

80

96

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

128 MB

L3 Cache

-

Theoretical Performance

200.4 GPixel/s

Pixel Rate

32.00 GPixel/s

500.9 GTexel/s

Texture Rate

80.00 GTexel/s

32.06 TFLOPS

FP16 (half)

-

16.03 TFLOPS

FP32 (float)

2.560 TFLOPS

1002 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

200W

TDP

175W

550 W

Suggested PSU

450 W

1x HDMI 2.1 4x Thunderbolt

Outputs

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

Apple MPX

Power Connectors

2x 6-pin

Graphics Processor

Navi 21

GPU Name

Pitcairn

Navi 21 Pro-XLA

GPU Variant

Pitcairn XT (215-0828047)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

2.8 billion

520 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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