AMD Radeon Pro W6800X vs AMD Radeon HD 7870 XT

VS

AMD Radeon Pro W6800X

AMD Radeon HD 7870 XT

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

Main Differences

AMD Radeon Pro W6800X 's Advantages

Released 8 years and 9 months late

Boost Clock has increased by 114% (2087MHz vs 975MHz)

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 192.0GB/s)

2304 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 200W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X +435%

16.03 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

Radeon Pro W6800X

VS

Radeon HD 7870 XT

Graphics Card

Aug 2021

Release Date

Nov 2012

Radeon Pro Mac

Generation

Southern Islands

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

925 MHz

2087 MHz

Boost Clock

975 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

32GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

192.0GB/s

Render Config

60

Compute Units

24

-

3840

Shading Units

1536

240

TMUs

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

31.20 GPixel/s

500.9 GTexel/s

Texture Rate

93.60 GTexel/s

32.06 TFLOPS

FP16 (half)

-

16.03 TFLOPS

FP32 (float)

2.995 TFLOPS

1002 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

200W

TDP

185W

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

Tahiti

Navi 21 Pro-XLA

GPU Variant

Tahiti LE (215-0821122)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

4.313 billion

520 mm²

Die Size

352 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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