Radeon HD 6990M Crossfire and GeForce MX450 - video card comparison
Radeon HD 6990M Crossfire
GeForce MX450
Architecture
Terascale 2 (2009−2015)
Turing (2018−2021)
GPU code name
Blackcomb XTX
N17S-G5 / GP107-670-A1
Market segment
Laptop
Laptop
Release date
July 2011
August 2020
Interface
-
PCIe 4.0 x4
Supplementary power connectors
-
None
Boost clock speed
-
1575 MHz
Core clock speed
715 MHz
1395 MHz
Manufacturing process technology
40 nm
12 nm
Number of transistors
2x1700 Million
4,700 million
Pipelines / CUDA cores
2240
896
Power consumption (TDP)
-
25 Watt (12 - 29 Watt TGP)
Texture fill rate
-
100.8
Memory type
GDDR5
GDDR5, GDDR6
Maximum RAM amount
2x2 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
900 MHz
10000 MHz
Memory bandwidth
-
64.03 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
11
12 (12_1)
CUDA
-
7.5
OpenCL
-
1.2
OpenGL
-
4.6
Shader Model
-
6.5
Vulkan
-
1.2
Optimus
-
+