AMD Radeon HD 6990M vs NVIDIA GeForce RTX 4090 D
GPU · Specs Compare
Graphics Card
Release Date
Jul 2011
Dec 2023
Generation
Vancouver
GeForce 40
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 4.0 x16
Clock Speeds
Memory Clock
900 MHz
1313 MHz
Base Clock
—
2280 MHz
Boost Clock
—
2520 MHz
Memory
Memory Size
2GB
24GB
Memory Type
GDDR5
GDDR6X
Memory Bus
256bit
384bit
Bandwidth
115.2GB/s
1008GB/s
Render Config
Compute Units
14
—
Shading Units
1120
14592
TMUs
56
456
ROPs
32
176
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
72 MB
SM Count
—
114
Tensor Cores
—
456
RT Cores
—
114
Theoretical Performance
Pixel Rate
22.88 GPixel/s
443.5 GPixel/s
Texture Rate
40.04 GTexel/s
1149 GTexel/s
FP32 (float)
1.602 TFLOPS
73.54 TFLOPS
FP16 (half)
—
73.54 TFLOPS
FP64 (double)
—
1149 GFLOPS
Graphics Processor
GPU Name
Blackcomb
AD102
GPU Variant
Blackcomb XTX(216-0811030)
AD102-250-A1
Architecture
TeraScale 2
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
40 nm
5 nm
Transistors
1.7 billion
76.3 billion
Die Size
212 mm²
609 mm²
Board Design
TDP
100W
425W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 16-pin
Suggested PSU
—
800 W
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.7
CUDA
—
8.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.