NVIDIA GeForce RTX 4090 Max-Q vs AMD Radeon HD 7950 Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Jan 2023
Mar 2013
Generation
GeForce 40 Mobile
Southern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
930 MHz
—
Boost Clock
1455 MHz
—
Memory Clock
1750 MHz
1250 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
384bit
Bandwidth
448.0GB/s
240.0GB/s
Render Config
SM Count
76
—
Shading Units
9728
1792
TMUs
304
112
ROPs
112
32
Tensor Cores
304
—
RT Cores
76
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
64 MB
768 KB
Compute Units
—
28
Theoretical Performance
Pixel Rate
163.0 GPixel/s
25.60 GPixel/s
Texture Rate
442.3 GTexel/s
89.60 GTexel/s
FP16 (half)
28.31 TFLOPS
—
FP32 (float)
28.31 TFLOPS
2.867 TFLOPS
FP64 (double)
442.3 GFLOPS
716.8 GFLOPS
Graphics Processor
GPU Name
AD103
Tahiti
GPU Variant
GN21-X11
Tahiti PRO(215-0821056)
Architecture
Ada Lovelace
GCN 1.0
Foundry
TSMC
TSMC
Process Size
4 nm
28 nm
Transistors
45.9 billion
4.313 billion
Die Size
379 mm²
352 mm²
Board Design
TDP
80W
200W
Outputs
Portable Device Dependent
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
—
550 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.3
1.2
CUDA
8.9
—
Shader Model
6.7
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.