AMD Radeon HD 6770M Mac Edition vs AMD Radeon HD 8690M

VS

AMD Radeon HD 6770M Mac Edition

AMD Radeon HD 8690M

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 2GB VRAM Radeon HD 8690M 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)

160 additional rendering cores

AMD Radeon HD 8690M 's Advantages

Released 2 years and 2 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition +11%

0.696 TFLOPS

Radeon HD 8690M

0.624 TFLOPS

Radeon HD 6770M Mac Edition

VS

Radeon HD 8690M

Graphics Card

Jan 2011

Release Date

Mar 2013

Vancouver

Generation

Solar System

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 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

5

-

480

Shading Units

320

24

TMUs

20

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

7.800 GPixel/s

17.40 GTexel/s

Texture Rate

19.50 GTexel/s

-

696.0 GFLOPS

FP32 (float)

624.0 GFLOPS

-

FP64 (double)

39.00 GFLOPS

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Whistler

GPU Name

Sun

Whistler XT (216-0810001)

GPU Variant

Sun S3 XT (216-0841009)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

0.69 billion

104 mm²

Die Size

56 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5 (5.1)

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