NVIDIA GeForce RTX 3080 Max Q vs AMD Radeon HD 7870M

VS

NVIDIA GeForce RTX 3080 Max Q AMD Radeon HD 7870M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Max Q 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 Max Q 's Advantages

Released 8 years and 9 months late

Boost Clock1245MHz

More VRAM (8GB vs 2GB)

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

5504 additional rendering cores

AMD Radeon HD 7870M 's Advantages

Lower TDP (45W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Max Q +1394%

15.3 TFLOPS

Radeon HD 7870M

1.024 TFLOPS

GeForce RTX 3080 Max Q

VS

Radeon HD 7870M

Graphics Card

Jan 2021

Release Date

Apr 2012

GeForce 30 Mobile

Generation

London

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

780 MHz

Base Clock

-

1245 MHz

Boost Clock

-

1500 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

384.0GB/s

Bandwidth

64.00GB/s

Render Config

48

SM Count

-

Compute Units

10

6144

Shading Units

640

192

TMUs

40

96

ROPs

16

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

Theoretical Performance

119.5 GPixel/s

Pixel Rate

12.80 GPixel/s

239.0 GTexel/s

Texture Rate

32.00 GTexel/s

15.30 TFLOPS

FP16 (half)

-

15.30 TFLOPS

FP32 (float)

1024 GFLOPS

239.0 GFLOPS

FP64 (double)

64.00 GFLOPS

Graphics Processor

GA104

GPU Name

Heathrow

GA104-775-A1

GPU Variant

Heathrow XT (216-0835033)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

1.5 billion

392 mm²

Die Size

123 mm²

Board Design

80W

TDP

45W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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

-

6.6

Shader Model

5.1

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