NVIDIA GeForce RTX 4080 Max-Q vs AMD Radeon HD 7870M

VS

NVIDIA GeForce RTX 4080 Max-Q

AMD Radeon HD 7870M

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 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 4080 Max-Q 's Advantages

Released 10 years and 9 months late

Boost Clock1350MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (336.0GB/s vs 64.00GB/s)

6784 additional rendering cores

AMD Radeon HD 7870M 's Advantages

Lower TDP (45W vs 60W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Max Q +1857%

20.04 TFLOPS

Radeon HD 7870M

1.024 TFLOPS

GeForce RTX 4080 Max Q

VS

Radeon HD 7870M

Graphics Card

Jan 2023

Release Date

Apr 2012

GeForce 40 Mobile

Generation

London

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

795 MHz

Base Clock

-

1350 MHz

Boost Clock

-

1750 MHz

Memory Clock

1000 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

336.0GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

10

58

SM Count

-

7424

Shading Units

640

232

TMUs

40

80

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

48 MB

L2 Cache

256 KB

-

Theoretical Performance

108.0 GPixel/s

Pixel Rate

12.80 GPixel/s

313.2 GTexel/s

Texture Rate

32.00 GTexel/s

20.04 TFLOPS

FP16 (half)

-

20.04 TFLOPS

FP32 (float)

1024 GFLOPS

313.2 GFLOPS

FP64 (double)

64.00 GFLOPS

Board Design

60W

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD104

GPU Name

Heathrow

GN21-X9

GPU Variant

Heathrow XT (216-0835033)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

35.8 billion

Transistors

1.5 billion

295 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

8.9

CUDA

-

6.7

Shader Model

5.1

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