AMD Radeon HD 6490M vs NVIDIA GeForce RTX 4090 Mobile

VS

AMD Radeon HD 6490M

NVIDIA GeForce RTX 4090 Mobile

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M and 16GB VRAM GeForce RTX 4090 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 12 years late

Boost Clock1695MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (576.0GB/s vs 25.60GB/s)

9568 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M

0.256 TFLOPS

GeForce RTX 4090 Mobile +12782%

32.98 TFLOPS

Radeon HD 6490M

VS

GeForce RTX 4090 Mobile

Graphics Card

Jan 2011

Release Date

Jan 2023

Vancouver

Generation

GeForce 40 Mobile

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1335 MHz

-

Boost Clock

1695 MHz

800 MHz

Memory Clock

2250 MHz

Memory

512MB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

576.0GB/s

Render Config

2

Compute Units

-

SM Count

76

160

Shading Units

9728

8

TMUs

304

4

ROPs

112

-

Tensor Cores

304

-

RT Cores

76

8 KB (per CU)

L1 Cache

128 KB (per SM)

128 KB

L2 Cache

64 MB

-

Theoretical Performance

3.200 GPixel/s

Pixel Rate

189.8 GPixel/s

6.400 GTexel/s

Texture Rate

515.3 GTexel/s

-

FP16 (half)

32.98 TFLOPS

256.0 GFLOPS

FP32 (float)

32.98 TFLOPS

-

FP64 (double)

515.3 GFLOPS

Board Design

Unknown

TDP

80-150W

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

AD103

Seymour XTX S3 (216-0809024)

GPU Variant

GN21-X11

TeraScale 2

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

0.37 billion

Transistors

45.9 billion

67 mm²

Die Size

379 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.9

5.0

Shader Model

6.8

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