AMD Radeon Pro W6600M vs AMD Radeon HD 6990M

VS

AMD Radeon Pro W6600M

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 8GB VRAM Radeon Pro W6600M and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6600M 's Advantages

Released 9 years and 11 months late

Boost Clock2034MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 115.2GB/s)

672 additional rendering cores

Lower TDP (90W vs 100W)

Score

Benchmark

FP32 (float)

Radeon Pro W6600M +355%

7.29 TFLOPS

Radeon HD 6990M

1.602 TFLOPS

Radeon Pro W6600M

VS

Radeon HD 6990M

Graphics Card

Jun 2021

Release Date

Jul 2011

Radeon Pro Mobile

Generation

Vancouver

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1224 MHz

Base Clock

-

2034 MHz

Boost Clock

-

1750 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

115.2GB/s

Render Config

28

Compute Units

14

66

SM Count

-

1792

Shading Units

1120

112

TMUs

56

64

ROPs

32

264

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

32 MB

L3 Cache

-

Theoretical Performance

130.2 GPixel/s

Pixel Rate

22.88 GPixel/s

227.8 GTexel/s

Texture Rate

40.04 GTexel/s

14.58 TFLOPS

FP16 (half)

-

7.290 TFLOPS

FP32 (float)

1.602 TFLOPS

455.6 GFLOPS

FP64 (double)

-

Board Design

90W

TDP

100W

600 W

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Blackcomb

Navi 23 WKS-XM

GPU Variant

Blackcomb XTX (216-0811030)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

11.06 billion

Transistors

1.7 billion

237 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

5.0

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