AMD Radeon HD 8670M vs AMD Radeon HD 6870M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 1024MB VRAM Radeon HD 6870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670M 's Advantages

Released 2 years and 2 months late

Boost Clock975MHz

AMD Radeon HD 6870M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670M

0.624 TFLOPS

Radeon HD 6870M +73%

1.08 TFLOPS

Radeon HD 8670M

VS

Radeon HD 6870M

Graphics Card

Mar 2013

Release Date

Jan 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

5

Compute Units

10

320

Shading Units

800

20

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

7.800 GPixel/s

Pixel Rate

10.80 GPixel/s

19.50 GTexel/s

Texture Rate

27.00 GTexel/s

-

FP16 (half)

-

624.0 GFLOPS

FP32 (float)

1080 GFLOPS

39.00 GFLOPS

FP64 (double)

-

Graphics Processor

Sun

GPU Name

Granville

Sun S3 XT (216-0841009)

GPU Variant

Granville XT (216-0769024)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

1.04 billion

56 mm²

Die Size

166 mm²

Board Design

Unknown

TDP

50W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

5.0

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