AMD Radeon Pro Duo vs AMD Radeon HD 6850 X2

VS

AMD Radeon Pro Duo

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 4GB VRAM Radeon Pro Duo and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Duo 's Advantages

Released 4 years and 7 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 134.4GB/s)

3136 additional rendering cores

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 350W)

Score

Benchmark

FP32 (float)

Radeon Pro Duo +433%

8.192 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon Pro Duo

VS

Radeon HD 6850 X2

Graphics Card

Apr 2016

Release Date

Sep 2011

Radeon Pro

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

2GB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

256bit

512.0GB/s

Bandwidth

134.4GB/s

Render Config

64

Compute Units

12

-

4096

Shading Units

960

256

TMUs

48

64

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

25.60 GPixel/s

256.0 GTexel/s

Texture Rate

38.40 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

1.536 TFLOPS

512.0 GFLOPS

FP64 (double)

-

Board Design

350W

TDP

254W

750 W

Suggested PSU

600 W

1x HDMI 1.4a 3x DisplayPort 1.2

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

3x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Capsaicin

GPU Name

Barts

Capsaicin XT

GPU Variant

Barts PRO (215-0798006)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

8.9 billion

Transistors

1.7 billion

596 mm²

Die Size

255 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.0

Shader Model

5.0

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