Home GPU Comparison NVIDIA GeForce RTX 3080 Max Q vs ATI Mobility Radeon HD 3870

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

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Max Q and 512MB VRAM Mobility Radeon HD 3870 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 7 months late
Boost Clock1245MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (384.0GB/s vs 54.40GB/s)
5824 additional rendering cores
ATI Mobility Radeon HD 3870 's Advantages
Lower TDP (55W vs 80W)

Score

Benchmark

FP32 (float)
GeForce RTX 3080 Max Q +3525%
15.3 TFLOPS
Mobility Radeon HD 3870
0.422 TFLOPS
VS

Graphics Card

Jan 2021
Release Date
Jun 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
55W
-
-
-
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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