NVIDIA GeForce RTX 5090 Mobile vs AMD Radeon HD 6990M

VS

NVIDIA GeForce RTX 5090 Mobile

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 5090 Mobile 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 5090 Mobile 's Advantages

Released 13 years and 6 months late

Boost Clock2000MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (1.01TB/s vs 115.2GB/s)

9632 additional rendering cores

AMD Radeon HD 6990M 's Advantages

Lower TDP (100W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 Mobile +2584%

43.01 TFLOPS

Radeon HD 6990M

1.602 TFLOPS

GeForce RTX 5090 Mobile

VS

Radeon HD 6990M

Graphics Card

Jan 2025

Release Date

Jul 2011

GeForce 50 Mobile

Generation

Vancouver

Mobile

Type

Mobile

PCIe 5.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1500 MHz

Base Clock

-

2000 MHz

Boost Clock

-

2500 MHz

Memory Clock

900 MHz

Memory

16GB

Memory Size

2GB

GDDR7

Memory Type

GDDR5

256bit

Memory Bus

256bit

1.01TB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

14

84

SM Count

-

10752

Shading Units

1120

336

TMUs

56

128

ROPs

32

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

64 MB

L2 Cache

512 KB

-

Theoretical Performance

256.0 GPixel/s

Pixel Rate

22.88 GPixel/s

672.0 GTexel/s

Texture Rate

40.04 GTexel/s

43.01 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

1.602 TFLOPS

672.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

100W

550 W

Suggested PSU

-

1x HDMI 2.13x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GB203

GPU Name

Blackcomb

-

GPU Variant

Blackcomb XTX (216-0811030)

Blackwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

Unknown

Transistors

1.7 billion

377 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

10.1

CUDA

-

6.8

Shader Model

5.0

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