AMD Radeon HD 6870 X2 vs AMD FirePro W8000

VS

AMD Radeon HD 6870 X2

AMD FirePro W8000

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 4GB VRAM FirePro W8000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD FirePro W8000 's Advantages

Released 11 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 134.4GB/s)

672 additional rendering cores

Lower TDP (225W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

FirePro W8000 +60%

3.226 TFLOPS

Radeon HD 6870 X2

VS

FirePro W8000

Graphics Card

Jul 2011

Release Date

Jun 2012

Northern Islands

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

176.0GB/s

Render Config

14

Compute Units

28

-

1120

Shading Units

1792

56

TMUs

112

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

28.80 GPixel/s

50.40 GTexel/s

Texture Rate

100.8 GTexel/s

-

2.016 TFLOPS

FP32 (float)

3.226 TFLOPS

-

FP64 (double)

806.4 GFLOPS

Board Design

300W

TDP

225W

700 W

Suggested PSU

550 W

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

Outputs

4x DisplayPort 1.2 1x SDI

-

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

Tahiti

Barts XT (215-0798000)

GPU Variant

Tahiti PRO GL

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

4.313 billion

255 mm²

Die Size

352 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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