AMD Radeon HD 7870M vs AMD Radeon RX Vega M GL

VS

AMD Radeon HD 7870M AMD Radeon RX Vega M GL

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7870M and 4GB VRAM Radeon RX Vega M GL to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870M 's Advantages

Lower TDP (45W vs 65W)

AMD Radeon RX Vega M GL 's Advantages

Released 5 years and 10 months late

Boost Clock1011MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (179.2GB/s vs 64.00GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870M

1.024 TFLOPS

Radeon RX Vega M GL +152%

2.588 TFLOPS

Radeon HD 7870M

VS

Radeon RX Vega M GL

Graphics Card

Apr 2012

Release Date

Feb 2018

London

Generation

Vega

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

IGP

Clock Speeds

-

Base Clock

931 MHz

-

Boost Clock

1011 MHz

1000 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

1024bit

64.00GB/s

Bandwidth

179.2GB/s

Render Config

-

SM Count

-

10

Compute Units

20

640

Shading Units

1280

40

TMUs

80

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

Theoretical Performance

12.80 GPixel/s

Pixel Rate

32.35 GPixel/s

32.00 GTexel/s

Texture Rate

80.88 GTexel/s

-

FP16 (half)

2.588 TFLOPS

1024 GFLOPS

FP32 (float)

2.588 TFLOPS

64.00 GFLOPS

FP64 (double)

161.8 GFLOPS

Graphics Processor

Heathrow

GPU Name

Polaris 22

Heathrow XT (216-0835033)

GPU Variant

VegaM XL (D715A714)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

5 billion

123 mm²

Die Size

208 mm²

Board Design

45W

TDP

65W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.4

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