AMD Radeon HD 8670A vs ATI Mobility Radeon HD 4670

VS

AMD Radeon HD 8670A

ATI Mobility Radeon HD 4670

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 512MB VRAM Mobility Radeon HD 4670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670A 's Advantages

Released 4 years and 1 months late

More VRAM (1024GB vs 512GB)

64 additional rendering cores

ATI Mobility Radeon HD 4670 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 16.00GB/s)

Lower TDP (35W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 8670A +6%

0.461 TFLOPS

Mobility Radeon HD 4670

0.432 TFLOPS

Radeon HD 8670A

VS

Mobility Radeon HD 4670

Graphics Card

Feb 2013

Release Date

Jan 2009

All-In-One

Generation

M9x

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

25.60GB/s

Render Config

6

Compute Units

4

-

384

Shading Units

320

24

TMUs

32

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

5.400 GPixel/s

14.40 GTexel/s

Texture Rate

21.60 GTexel/s

-

460.8 GFLOPS

FP32 (float)

432.0 GFLOPS

28.80 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

M96

Mars XT

GPU Variant

M96 XT (216-0729051)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.95 billion

Transistors

0.514 billion

77 mm²

Die Size

146 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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