AMD Radeon 540X Mobile vs AMD Radeon HD 7870M

VS

AMD Radeon 540X Mobile AMD Radeon HD 7870M

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

Main Differences

AMD Radeon 540X Mobile 's Advantages

Released 6 years and 10 months late

Boost Clock1095MHz

AMD Radeon HD 7870M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 32.00GB/s)

128 additional rendering cores

Lower TDP (45W vs 50W)

Score

Benchmark

FP32 (float)

Radeon 540X Mobile +9%

1.121 TFLOPS

Radeon HD 7870M

1.024 TFLOPS

Radeon 540X Mobile

VS

Radeon HD 7870M

Graphics Card

Feb 2019

Release Date

Apr 2012

Mobility Radeon

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

-

1095 MHz

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

32.00GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

8

Compute Units

10

512

Shading Units

640

32

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

17.52 GPixel/s

Pixel Rate

12.80 GPixel/s

35.04 GTexel/s

Texture Rate

32.00 GTexel/s

1121 GFLOPS

FP16 (half)

-

1121 GFLOPS

FP32 (float)

1024 GFLOPS

70.08 GFLOPS

FP64 (double)

64.00 GFLOPS

Graphics Processor

Lexa

GPU Name

Heathrow

Lexa PRO (215-0904018)

GPU Variant

Heathrow XT (216-0835033)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.5 billion

103 mm²

Die Size

123 mm²

Board Design

50W

TDP

45W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

5.1

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