AMD Radeon HD 6990M vs AMD Radeon RX 6650M XT

VS

AMD Radeon HD 6990M

AMD Radeon RX 6650M XT

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 8GB VRAM Radeon RX 6650M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Lower TDP (100W vs 120W)

AMD Radeon RX 6650M XT 's Advantages

Released 10 years and 6 months late

Boost Clock2416MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 115.2GB/s)

928 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M

1.602 TFLOPS

Radeon RX 6650M XT +517%

9.896 TFLOPS

Radeon HD 6990M

VS

Radeon RX 6650M XT

Graphics Card

Jul 2011

Release Date

Jan 2022

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2068 MHz

-

Boost Clock

2416 MHz

900 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

256.0GB/s

Render Config

14

Compute Units

32

-

1120

Shading Units

2048

56

TMUs

128

32

ROPs

64

-

RT Cores

32

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

22.88 GPixel/s

Pixel Rate

154.6 GPixel/s

40.04 GTexel/s

Texture Rate

309.2 GTexel/s

-

FP16 (half)

19.79 TFLOPS

1.602 TFLOPS

FP32 (float)

9.896 TFLOPS

-

FP64 (double)

618.5 GFLOPS

Board Design

100W

TDP

120W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Blackcomb

GPU Name

Navi 23

Blackcomb XTX (216-0811030)

GPU Variant

-

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

1.7 billion

Transistors

11.06 billion

212 mm²

Die Size

237 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.5

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