AMD Radeon HD 7730M vs AMD Radeon HD 8670A

VS

AMD Radeon HD 7730M

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7730M 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 7730M 's Advantages

Boost Clock675MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 16.00GB/s)

128 additional rendering cores

Lower TDP (25W vs 45W)

AMD Radeon HD 8670A 's Advantages

Released 10 months late

Score

Benchmark

FP32 (float)

Radeon HD 7730M +49%

0.691 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

Radeon HD 7730M

VS

Radeon HD 8670A

Graphics Card

Apr 2012

Release Date

Feb 2013

London

Generation

All-In-One

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

575 MHz

Base Clock

-

675 MHz

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

16.00GB/s

Render Config

8

Compute Units

6

-

512

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

4.800 GPixel/s

21.60 GTexel/s

Texture Rate

14.40 GTexel/s

-

691.2 GFLOPS

FP32 (float)

460.8 GFLOPS

43.20 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

25W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Chelsea

GPU Name

Mars

Chelsea LE (216-0834065)

GPU Variant

Mars XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

0.95 billion

123 mm²

Die Size

77 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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