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

VS

AMD Radeon HD 6990M AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (115.2GB/s vs 70.40GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M +25%

1.602 TFLOPS

Radeon HD 6990M Rebrand

1.28 TFLOPS

Radeon HD 6990M

VS

Radeon HD 6990M Rebrand

Graphics Card

Jul 2011

Release Date

Jul 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1100 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

70.40GB/s

Render Config

-

SM Count

-

14

Compute Units

14

1120

Shading Units

800

56

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

22.88 GPixel/s

Pixel Rate

12.80 GPixel/s

40.04 GTexel/s

Texture Rate

32.00 GTexel/s

-

FP16 (half)

-

1.602 TFLOPS

FP32 (float)

1280 GFLOPS

-

FP64 (double)

-

Graphics Processor

Blackcomb

GPU Name

Broadway

Blackcomb XTX (216-0811030)

GPU Variant

Broadway XTX

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.04 billion

212 mm²

Die Size

166 mm²

Board Design

100W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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