NVIDIA GeForce RTX 3080 Ti Mobile vs AMD Radeon HD 7870M

VS

NVIDIA GeForce RTX 3080 Ti Mobile

AMD Radeon HD 7870M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Ti Mobile and 2GB VRAM Radeon HD 7870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti Mobile 's Advantages

Released 9 years and 9 months late

Boost Clock1260MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 64.00GB/s)

6784 additional rendering cores

AMD Radeon HD 7870M 's Advantages

Lower TDP (45W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti Mobile +1727%

18.71 TFLOPS

Radeon HD 7870M

1.024 TFLOPS

GeForce RTX 3080 Ti Mobile

VS

Radeon HD 7870M

Graphics Card

Jan 2022

Release Date

Apr 2012

GeForce 30 Mobile

Generation

London

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

810 MHz

Base Clock

-

1260 MHz

Boost Clock

-

2000 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

512.0GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

10

58

SM Count

-

7424

Shading Units

640

232

TMUs

40

96

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

121.0 GPixel/s

Pixel Rate

12.80 GPixel/s

292.3 GTexel/s

Texture Rate

32.00 GTexel/s

18.71 TFLOPS

FP16 (half)

-

18.71 TFLOPS

FP32 (float)

1024 GFLOPS

292.3 GFLOPS

FP64 (double)

64.00 GFLOPS

Board Design

115W

TDP

45W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GA103S

GPU Name

Heathrow

GN20-E8-A1

GPU Variant

Heathrow XT (216-0835033)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

Unknown

Transistors

1.5 billion

496 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.6

CUDA

-

6.5

Shader Model

5.1

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