AMD Radeon HD 8870M vs AMD Radeon HD 8670M

VS

AMD Radeon HD 8870M

AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M and 1024MB VRAM Radeon HD 8670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 14.40GB/s)

320 additional rendering cores

AMD Radeon HD 8670M 's Advantages

Boost Clock has increased by 26% (975MHz vs 775MHz)

Score

Benchmark

FP32 (float)

Radeon HD 8870M +58%

0.992 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

Radeon HD 8870M

VS

Radeon HD 8670M

Graphics Card

Apr 2013

Release Date

Mar 2013

Solar System

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

725 MHz

Base Clock

925 MHz

775 MHz

Boost Clock

975 MHz

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

14.40GB/s

Render Config

10

Compute Units

5

-

640

Shading Units

320

40

TMUs

20

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

12.40 GPixel/s

Pixel Rate

7.800 GPixel/s

31.00 GTexel/s

Texture Rate

19.50 GTexel/s

-

992.0 GFLOPS

FP32 (float)

624.0 GFLOPS

62.00 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Venus

GPU Name

Sun

Venus XT (216-0846000)

GPU Variant

Sun S3 XT (216-0841009)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

0.69 billion

123 mm²

Die Size

56 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

6.5 (5.1)

Shader Model

6.5 (5.1)

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