AMD Radeon HD 6850M vs AMD Radeon HD 6990M Rebrand

VS

AMD Radeon HD 6850M AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6850M 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 6850M 's Advantages

Lower TDP (50W vs 100W)

AMD Radeon HD 6990M Rebrand 's Advantages

Released 6 months late

Larger VRAM bandwidth (70.40GB/s vs 25.60GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6850M

1.08 TFLOPS

Radeon HD 6990M Rebrand +18%

1.28 TFLOPS

Radeon HD 6850M

VS

Radeon HD 6990M Rebrand

Graphics Card

Jan 2011

Release Date

Jul 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

1100 MHz

Memory

1024MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

70.40GB/s

Render Config

-

SM Count

-

10

Compute Units

14

800

Shading Units

800

40

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

10.80 GPixel/s

Pixel Rate

12.80 GPixel/s

27.00 GTexel/s

Texture Rate

32.00 GTexel/s

-

FP16 (half)

-

1080 GFLOPS

FP32 (float)

1280 GFLOPS

-

FP64 (double)

-

Graphics Processor

Granville

GPU Name

Broadway

Granville PRO

GPU Variant

Broadway XTX

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

1.04 billion

166 mm²

Die Size

166 mm²

Board Design

50W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

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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