AMD Radeon HD 8690M vs AMD Radeon HD 8670A

VS

AMD Radeon HD 8690M

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8690M and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8690M 's Advantages

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (32.00GB/s vs 16.00GB/s)

AMD Radeon HD 8670A 's Advantages

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8690M +35%

0.624 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

Radeon HD 8690M

VS

Radeon HD 8670A

Graphics Card

Mar 2013

Release Date

Feb 2013

Solar System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-A (3.0)

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

32.00GB/s

Bandwidth

16.00GB/s

Render Config

5

Compute Units

6

-

320

Shading Units

384

20

TMUs

24

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

4.800 GPixel/s

19.50 GTexel/s

Texture Rate

14.40 GTexel/s

-

624.0 GFLOPS

FP32 (float)

460.8 GFLOPS

39.00 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

Unknown

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Sun

GPU Name

Mars

Sun S3 XT (216-0841009)

GPU Variant

Mars XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

0.95 billion

56 mm²

Die Size

77 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

5.1

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