NVIDIA GeForce RTX 4080 Max-Q vs AMD Radeon HD 6990M
GPU · Specs Compare
Graphics Card
Release Date
Jan 2023
Jul 2011
Generation
GeForce 40 Mobile
Vancouver
Type
Mobile
Mobile
Bus Interface
PCIe 4.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
795 MHz
—
Boost Clock
1350 MHz
—
Memory Clock
1750 MHz
900 MHz
Memory
Memory Size
12GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
192bit
256bit
Bandwidth
336.0GB/s
115.2GB/s
Render Config
SM Count
58
—
Shading Units
7424
1120
TMUs
232
56
ROPs
80
32
Tensor Cores
232
—
RT Cores
58
—
L1 Cache
128 KB (per SM)
8 KB (per CU)
L2 Cache
48 MB
512 KB
Compute Units
—
14
Theoretical Performance
Pixel Rate
108.0 GPixel/s
22.88 GPixel/s
Texture Rate
313.2 GTexel/s
40.04 GTexel/s
FP16 (half)
20.04 TFLOPS
—
FP32 (float)
20.04 TFLOPS
1.602 TFLOPS
FP64 (double)
313.2 GFLOPS
—
Graphics Processor
GPU Name
AD104
Blackcomb
GPU Variant
GN21-X9
Blackcomb XTX(216-0811030)
Architecture
Ada Lovelace
TeraScale 2
Foundry
TSMC
TSMC
Process Size
4 nm
40 nm
Transistors
35.8 billion
1.7 billion
Die Size
295 mm²
212 mm²
Board Design
TDP
60W
100W
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
3.0
1.2
Vulkan
1.3
N/A
CUDA
8.9
—
Shader Model
6.7
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.