AMD Radeon HD 8870 OEM vs AMD Radeon Pro W6800X Duo

VS

AMD Radeon HD 8870 OEM AMD Radeon Pro W6800X Duo

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 32GB VRAM Radeon Pro W6800X Duo to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 400W)

AMD Radeon Pro W6800X Duo 's Advantages

Released 8 years and 7 months late

Boost Clock1967MHz

More VRAM (32GB vs 2GB)

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

2560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM

2.56 TFLOPS

Radeon Pro W6800X Duo +490%

15.11 TFLOPS

Radeon HD 8870 OEM

VS

Radeon Pro W6800X Duo

Graphics Card

Jan 2013

Release Date

Aug 2021

Sea Islands

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

Apple MPX

Clock Speeds

-

Base Clock

1800 MHz

-

Boost Clock

1967 MHz

1200 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

32GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

512.0GB/s

Render Config

-

SM Count

-

20

Compute Units

60

1280

Shading Units

3840

80

TMUs

240

32

ROPs

96

-

Tensor Cores

-

RT Cores

60

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

188.8 GPixel/s

80.00 GTexel/s

Texture Rate

472.1 GTexel/s

-

FP16 (half)

30.21 TFLOPS

2.560 TFLOPS

FP32 (float)

15.11 TFLOPS

160.0 GFLOPS

FP64 (double)

944.2 GFLOPS

Graphics Processor

Pitcairn

GPU Name

Navi 21

Pitcairn XT (215-0828047)

GPU Variant

Navi 21 Pro-XLA

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

2.8 billion

Transistors

26.8 billion

212 mm²

Die Size

520 mm²

Board Design

175W

TDP

400W

450 W

Suggested PSU

800 W

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

Outputs

1x HDMI 2.1 4x Thunderbolt

2x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.7

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