AMD Radeon HD 8870 OEM vs AMD Radeon Pro Duo

VS

AMD Radeon HD 8870 OEM

AMD Radeon Pro Duo

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 4GB VRAM Radeon Pro 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 350W)

AMD Radeon Pro Duo 's Advantages

Released 3 years and 3 months late

More VRAM (4GB vs 2GB)

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

2816 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM

2.56 TFLOPS

Radeon Pro Duo +220%

8.192 TFLOPS

Radeon HD 8870 OEM

VS

Radeon Pro Duo

Graphics Card

Jan 2013

Release Date

Apr 2016

Sea Islands

Generation

Radeon Pro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

HBM

256bit

Memory Bus

4096bit

153.6GB/s

Bandwidth

512.0GB/s

Render Config

20

Compute Units

64

-

1280

Shading Units

4096

80

TMUs

256

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

64.00 GPixel/s

80.00 GTexel/s

Texture Rate

256.0 GTexel/s

-

FP16 (half)

8.192 TFLOPS

2.560 TFLOPS

FP32 (float)

8.192 TFLOPS

160.0 GFLOPS

FP64 (double)

512.0 GFLOPS

Board Design

175W

TDP

350W

450 W

Suggested PSU

750 W

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

Outputs

1x HDMI 1.4a 3x DisplayPort 1.2

2x 6-pin

Power Connectors

3x 8-pin

Graphics Processor

Pitcairn

GPU Name

Capsaicin

Pitcairn XT (215-0828047)

GPU Variant

Capsaicin XT

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

8.9 billion

212 mm²

Die Size

596 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.0

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