AMD Radeon HD 6990M Rebrand vs AMD Radeon HD 8970M

VS

AMD Radeon HD 6990M Rebrand AMD Radeon HD 8970M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 4GB VRAM Radeon HD 8970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Released 1 years and 10 months late

Boost Clock900MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (153.6GB/s vs 70.40GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand

1.28 TFLOPS

Radeon HD 8970M +80%

2.304 TFLOPS

Radeon HD 6990M Rebrand

VS

Radeon HD 8970M

Graphics Card

Jul 2011

Release Date

May 2013

Vancouver

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

900 MHz

1100 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

70.40GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

14

Compute Units

20

800

Shading Units

1280

40

TMUs

80

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

12.80 GPixel/s

Pixel Rate

28.80 GPixel/s

32.00 GTexel/s

Texture Rate

72.00 GTexel/s

-

FP16 (half)

-

1280 GFLOPS

FP32 (float)

2.304 TFLOPS

-

FP64 (double)

144.0 GFLOPS

Graphics Processor

Broadway

GPU Name

Neptune

Broadway XTX

GPU Variant

Neptune XT (216-0847000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

2.8 billion

166 mm²

Die Size

212 mm²

Board Design

100W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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