AMD Radeon HD 6870M vs AMD Radeon Pro Vega 56

VS

AMD Radeon HD 6870M

AMD Radeon Pro Vega 56

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 8GB VRAM Radeon Pro Vega 56 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

Lower TDP (50W vs 210W)

AMD Radeon Pro Vega 56 's Advantages

Released 6 years and 7 months late

Boost Clock1250MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (402.4GB/s vs 64.00GB/s)

2784 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870M

1.08 TFLOPS

Radeon Pro Vega 56 +729%

8.96 TFLOPS

Radeon HD 6870M

VS

Radeon Pro Vega 56

Graphics Card

Jan 2011

Release Date

Aug 2017

Vancouver

Generation

Radeon Pro Mac

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1138 MHz

-

Boost Clock

1250 MHz

1000 MHz

Memory Clock

786 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

2048bit

64.00GB/s

Bandwidth

402.4GB/s

Render Config

10

Compute Units

56

-

800

Shading Units

3584

40

TMUs

224

16

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

80.00 GPixel/s

27.00 GTexel/s

Texture Rate

280.0 GTexel/s

-

FP16 (half)

17.92 TFLOPS

1080 GFLOPS

FP32 (float)

8.960 TFLOPS

-

FP64 (double)

560.0 GFLOPS

Board Design

50W

TDP

210W

-

No outputs

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

Granville

GPU Name

Vega 10

Granville XT (216-0769024)

GPU Variant

Vega 10 XL (215-0894216)

TeraScale 2

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.04 billion

Transistors

12.5 billion

166 mm²

Die Size

495 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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