Radeon HD 6990M Crossfire and GeForce RTX 4090 - video card comparison
Radeon HD 6990M Crossfire
GeForce RTX 4090
Architecture
Terascale 2 (2009−2015)
Ada Lovelace
GPU code name
Blackcomb XTX
AD102-300-A1
Market segment
Laptop
Desktop
Release date
July 2011
September 2022
Interface
-
PCIe 4.0 x16
Supplementary power connectors
-
1x 16-pin
Boost clock speed
-
2520 MHz
Core clock speed
715 MHz
2235 MHz
Manufacturing process technology
40 nm
5 nm
Number of transistors
2x1700 Million
76,300 million
Pipelines / CUDA cores
2240
16384
Power consumption (TDP)
-
450 Watt
Texture fill rate
-
1,290
Memory type
GDDR5
GDDR6X
Maximum RAM amount
2x2 GB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
900 MHz
21000 MHz
Memory bandwidth
-
1,008 GB/s
Shared memory
-
-
Display Connectors
-
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
-
+
DirectX
11
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
-
3.0
OpenGL
-
4.6
Shader Model
-
6.6
Vulkan
-
1.3