AMD Radeon HD 6870M vs NVIDIA GeForce RTX 3080 Ti Max Q

VS

AMD Radeon HD 6870M

NVIDIA GeForce RTX 3080 Ti Max Q

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 16GB VRAM GeForce RTX 3080 Ti Max Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

Lower TDP (50W vs 80W)

NVIDIA GeForce RTX 3080 Ti Max Q 's Advantages

Released 11 years late

Boost Clock1125MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 64.00GB/s)

6624 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870M

1.08 TFLOPS

GeForce RTX 3080 Ti Max Q +1446%

16.7 TFLOPS

Radeon HD 6870M

VS

GeForce RTX 3080 Ti Max Q

Graphics Card

Jan 2011

Release Date

Jan 2022

Vancouver

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

585 MHz

-

Boost Clock

1125 MHz

1000 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

384.0GB/s

Render Config

10

Compute Units

-

SM Count

58

800

Shading Units

7424

40

TMUs

232

16

ROPs

96

-

Tensor Cores

232

-

RT Cores

58

8 KB (per CU)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

108.0 GPixel/s

27.00 GTexel/s

Texture Rate

261.0 GTexel/s

-

FP16 (half)

16.70 TFLOPS

1080 GFLOPS

FP32 (float)

16.70 TFLOPS

-

FP64 (double)

261.0 GFLOPS

Board Design

50W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Granville

GPU Name

GA103S

Granville XT (216-0769024)

GPU Variant

GN20-E8-A1

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.04 billion

Transistors

Unknown

166 mm²

Die Size

496 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

8.6

5.0

Shader Model

6.5

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