AMD Radeon HD 8670M vs AMD Radeon HD 6770M

VS

AMD Radeon HD 8670M

AMD Radeon HD 6770M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 1024MB VRAM Radeon HD 6770M 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 6770M 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 14.40GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670M

0.624 TFLOPS

Radeon HD 6770M +11%

0.696 TFLOPS

Radeon HD 8670M

VS

Radeon HD 6770M

Graphics Card

Mar 2013

Release Date

Jan 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-A (3.0)

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

57.60GB/s

Render Config

5

Compute Units

6

-

320

Shading Units

480

20

TMUs

24

8

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

5.800 GPixel/s

19.50 GTexel/s

Texture Rate

17.40 GTexel/s

-

624.0 GFLOPS

FP32 (float)

696.0 GFLOPS

39.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Sun

GPU Name

Whistler

Sun S3 XT (216-0841009)

GPU Variant

Whistler XT (216-0810001)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

0.716 billion

56 mm²

Die Size

104 mm²

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

-

6.5 (5.1)

Shader Model

5.0

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