AMD Radeon HD 7870M vs AMD Radeon RX 540 Mobile

VS

AMD Radeon HD 7870M AMD Radeon RX 540 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7870M and 2GB VRAM Radeon RX 540 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870M 's Advantages

128 additional rendering cores

Lower TDP (45W vs 50W)

AMD Radeon RX 540 Mobile 's Advantages

Released 5 years and 7 months late

Boost Clock1219MHz

Larger VRAM bandwidth (96.00GB/s vs 64.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 7870M

1.024 TFLOPS

Radeon RX 540 Mobile +21%

1.248 TFLOPS

Radeon HD 7870M

VS

Radeon RX 540 Mobile

Graphics Card

Apr 2012

Release Date

Nov 2017

London

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1124 MHz

-

Boost Clock

1219 MHz

1000 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

10

Compute Units

8

640

Shading Units

512

40

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

12.80 GPixel/s

Pixel Rate

19.50 GPixel/s

32.00 GTexel/s

Texture Rate

39.01 GTexel/s

-

FP16 (half)

1248 GFLOPS

1024 GFLOPS

FP32 (float)

1248 GFLOPS

64.00 GFLOPS

FP64 (double)

78.02 GFLOPS

Graphics Processor

Heathrow

GPU Name

Lexa

Heathrow XT (216-0835033)

GPU Variant

Lexa PRO (215-0904018)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

2.2 billion

123 mm²

Die Size

103 mm²

Board Design

45W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

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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