NVIDIA GeForce RTX 5080 Mobile vs AMD Radeon HD 8790M

VS

NVIDIA GeForce RTX 5080 Mobile

AMD Radeon HD 8790M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 5080 Mobile and 2GB VRAM Radeon HD 8790M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 Mobile 's Advantages

Released 11 years and 9 months late

Boost Clock has increased by 122% (2000MHz vs 900MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (1.01TB/s vs 64.00GB/s)

7808 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 5080 Mobile +4642%

32.77 TFLOPS

Radeon HD 8790M

0.691 TFLOPS

GeForce RTX 5080 Mobile

VS

Radeon HD 8790M

Graphics Card

Jan 2025

Release Date

Apr 2013

GeForce 50 Mobile

Generation

Solar System

Mobile

Type

Mobile

PCIe 5.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

1500 MHz

Base Clock

850 MHz

2000 MHz

Boost Clock

900 MHz

2500 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

2GB

GDDR7

Memory Type

GDDR5

256bit

Memory Bus

128bit

1.01TB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

6

64

SM Count

-

8192

Shading Units

384

256

TMUs

24

96

ROPs

8

256

Tensor Cores

-

64

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

256 KB

-

Theoretical Performance

192.0 GPixel/s

Pixel Rate

7.200 GPixel/s

512.0 GTexel/s

Texture Rate

21.60 GTexel/s

32.77 TFLOPS

FP16 (half)

-

32.77 TFLOPS

FP32 (float)

691.2 GFLOPS

512.0 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

175W

TDP

Unknown

550 W

Suggested PSU

-

1x HDMI 2.13x DisplayPort 1.4a

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

GB203

GPU Name

Mars

-

GPU Variant

Mars M2 XTX (216-0842036)

Blackwell 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

0.95 billion

377 mm²

Die Size

77 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

10.1

CUDA

-

6.8

Shader Model

6.5 (5.1)

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