NVIDIA GeForce RTX 3080 Ti Max Q vs AMD Radeon HD 6990M

VS

NVIDIA GeForce RTX 3080 Ti Max Q

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Ti Max Q and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti Max Q 's Advantages

Released 10 years and 6 months late

Boost Clock1125MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 115.2GB/s)

6304 additional rendering cores

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti Max Q +942%

16.7 TFLOPS

Radeon HD 6990M

1.602 TFLOPS

GeForce RTX 3080 Ti Max Q

VS

Radeon HD 6990M

Graphics Card

Jan 2022

Release Date

Jul 2011

GeForce 30 Mobile

Generation

Vancouver

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

585 MHz

Base Clock

-

1125 MHz

Boost Clock

-

1500 MHz

Memory Clock

900 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

384.0GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

14

58

SM Count

-

7424

Shading Units

1120

232

TMUs

56

96

ROPs

32

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

108.0 GPixel/s

Pixel Rate

22.88 GPixel/s

261.0 GTexel/s

Texture Rate

40.04 GTexel/s

16.70 TFLOPS

FP16 (half)

-

16.70 TFLOPS

FP32 (float)

1.602 TFLOPS

261.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GA103S

GPU Name

Blackcomb

GN20-E8-A1

GPU Variant

Blackcomb XTX (216-0811030)

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

Unknown

Transistors

1.7 billion

496 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.6

CUDA

-

6.5

Shader Model

5.0

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