NVIDIA GeForce RTX 3080 Max Q vs ATI Mobility Radeon HD 3870 X2

VS

NVIDIA GeForce RTX 3080 Max Q

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Max Q and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Max Q 's Advantages

Released 12 years and 4 months late

Boost Clock1245MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 54.40GB/s)

5824 additional rendering cores

Lower TDP (80W vs 110W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Max Q +3525%

15.3 TFLOPS

Mobility Radeon HD 3870 X2

0.422 TFLOPS

GeForce RTX 3080 Max Q

VS

Mobility Radeon HD 3870 X2

Graphics Card

Jan 2021

Release Date

Sep 2008

GeForce 30 Mobile

Generation

M8x

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

780 MHz

Base Clock

-

1245 MHz

Boost Clock

-

1500 MHz

Memory Clock

850 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

384.0GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

4

48

SM Count

-

6144

Shading Units

320

192

TMUs

16

96

ROPs

16

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

-

4 MB

L2 Cache

256 KB

-

Theoretical Performance

119.5 GPixel/s

Pixel Rate

10.56 GPixel/s

239.0 GTexel/s

Texture Rate

10.56 GTexel/s

15.30 TFLOPS

FP16 (half)

-

15.30 TFLOPS

FP32 (float)

422.4 GFLOPS

239.0 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

80W

TDP

110W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GA104

GPU Name

M88

GA104-775-A1

GPU Variant

-

Ampere

Architecture

TeraScale

Samsung

Foundry

TSMC

8 nm

Process Size

55 nm

17.4 billion

Transistors

0.666 billion

392 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.3

Vulkan

N/A

8.6

CUDA

-

6.6

Shader Model

4.1

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