Radeon HD 6990M and GeForce GT 240M - video card comparison
Radeon HD 6990M
GeForce GT 240M
Architecture
Terascale 2 (2009−2015)
GT2xx (2009−2012)
GPU code name
Blackcomb XTX
N10P-GS
Market segment
Laptop
Laptop
Release date
July 2011
June 2009
Bus support
-
PCI-E 2.0
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
715 MHz
550 MHz
CUDA cores
-
48
Floating-point performance
1,601.6 gflops
116.16 gflops
Gigaflops
-
174
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
486 million
Pipelines / CUDA cores
1120
48
Power consumption (TDP)
100 Watt
23 Watt
Texture fill rate
40.04
8.800
Memory type
GDDR5
DDR3, GDDR2, GDDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
900 MHz
Up to 600 (DDR2), Up to 1066 (DDR3), Up to 800 (GDDR3) MHz
Memory bandwidth
115.2 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
Single Link DVIDisplayPortDual Link DVIHDMIVGA
Multi monitor support
-
+
HDMI
-
+
Maximum VGA resolution
-
2048x1536
DirectX
11.2 (11_0)
11.1 (10_1)
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.4
2.1
Shader Model
5.0
4.1
Vulkan
N/A
N/A
Power management
-
8.0