GeForce RTX 4090 Max Q vs Radeon HD 8670M
We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 1024MB VRAM Radeon HD 8670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 Max Q Advantages
Released 9 years and 10 months late
Boost Clock has increased by 49% (1455MHz vs 975MHz)
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (448.0GB/s vs 14.40GB/s)
9408 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce RTX 4090 Max Q
+4436%
28310
Radeon HD 8670M
624
Graphics Card
Jan 2023
Release Date
Mar 2013
GeForce 40 Mobile
Generation
Solar System
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
930 MHz
Base Clock
925 MHz
1455 MHz
Boost Clock
975 MHz
1750 MHz
Memory Clock
900 MHz
Memory
16GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
64bit
448.0GB/s
Bandwidth
14.40GB/s
Render Config
-
Compute Units
5
76
SM Count
-
9728
Shading Units
320
304
TMUs
20
112
ROPs
8
304
Tensor Cores
-
76
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
64 MB
L2 Cache
128 KB
Theoretical Performance
163.0 GPixel/s
Pixel Rate
7.800 GPixel/s
442.3 GTexel/s
Texture Rate
19.50 GTexel/s
28.31 TFLOPS
FP16 (half)
-
28.31 TFLOPS
FP32 (float)
624.0 GFLOPS
442.3 GFLOPS
FP64 (double)
39.00 GFLOPS
Board Design
80W
TDP
Unknown
Portable Device Dependent
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
AD103
GPU Name
Sun
GN21-X11
GPU Variant
Sun S3 XT
(216-0841009)
(216-0841009)
Ada Lovelace
Architecture
GCN 1.0
TSMC
Foundry
TSMC
4 nm
Process Size
28 nm
45.9 billion
Transistors
0.69 billion
379 mm²
Die Size
56 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
2.1 (1.2)
1.3
Vulkan
1.2.170
8.9
CUDA
-
6.7
Shader Model
6.5 (5.1)