AMD Radeon HD 8670A vs ATI Mobility Radeon HD 3670

VS

AMD Radeon HD 8670A

ATI Mobility Radeon HD 3670

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 256MB VRAM Mobility Radeon HD 3670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670A 's Advantages

Released 5 years and 1 months late

More VRAM (1024GB vs 256GB)

264 additional rendering cores

ATI Mobility Radeon HD 3670 's Advantages

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

Lower TDP (30W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 8670A +182%

0.461 TFLOPS

Mobility Radeon HD 3670

0.163 TFLOPS

Radeon HD 8670A

VS

Mobility Radeon HD 3670

Graphics Card

Feb 2013

Release Date

Jan 2008

All-In-One

Generation

M8x

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

256MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

25.60GB/s

Render Config

6

Compute Units

3

-

384

Shading Units

120

24

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

128 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

2.720 GPixel/s

14.40 GTexel/s

Texture Rate

5.440 GTexel/s

-

460.8 GFLOPS

FP32 (float)

163.2 GFLOPS

28.80 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

30W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

M86

Mars XT

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.95 billion

Transistors

0.378 billion

77 mm²

Die Size

135 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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