AMD Radeon HD 6990M vs AMD Radeon HD 6470M

VS

AMD Radeon HD 6990M

AMD Radeon HD 6470M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 512MB VRAM Radeon HD 6470M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Released 6 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 12.80GB/s)

960 additional rendering cores

AMD Radeon HD 6470M 's Advantages

Lower TDP (25W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +615%

1.602 TFLOPS

Radeon HD 6470M

0.224 TFLOPS

Radeon HD 6990M

VS

Radeon HD 6470M

Graphics Card

Jul 2011

Release Date

Jan 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

12.80GB/s

Render Config

14

Compute Units

2

-

1120

Shading Units

160

56

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

2.800 GPixel/s

40.04 GTexel/s

Texture Rate

5.600 GTexel/s

-

1.602 TFLOPS

FP32 (float)

224.0 GFLOPS

-

Board Design

100W

TDP

25W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

Seymour

Blackcomb XTX (216-0811030)

GPU Variant

Seymour XT (216-0810084)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.37 billion

212 mm²

Die Size

67 mm²

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

-

5.0

Shader Model

5.0

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