AMD Radeon HD 6770M Mac Edition vs AMD Radeon 540X Mobile

VS

AMD Radeon HD 6770M Mac Edition

AMD Radeon 540X Mobile

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 2GB VRAM Radeon 540X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770M Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 32.00GB/s)

Lower TDP (35W vs 50W)

AMD Radeon 540X Mobile 's Advantages

Released 8 years and 1 months late

Boost Clock1095MHz

More VRAM (2GB vs 512GB)

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition

0.696 TFLOPS

Radeon 540X Mobile +61%

1.121 TFLOPS

Radeon HD 6770M Mac Edition

VS

Radeon 540X Mobile

Graphics Card

Jan 2011

Release Date

Feb 2019

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1095 MHz

900 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

57.60GB/s

Bandwidth

32.00GB/s

Render Config

6

Compute Units

8

-

480

Shading Units

512

24

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

17.52 GPixel/s

17.40 GTexel/s

Texture Rate

35.04 GTexel/s

-

FP16 (half)

1121 GFLOPS

696.0 GFLOPS

FP32 (float)

1121 GFLOPS

-

FP64 (double)

70.08 GFLOPS

Board Design

35W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Whistler

GPU Name

Lexa

Whistler XT (216-0810001)

GPU Variant

Lexa PRO (215-0904018)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.716 billion

Transistors

2.2 billion

104 mm²

Die Size

103 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

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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