Mobility Radeon HD 4870 and GeForce GT 240M - video card comparison
Mobility Radeon HD 4870
GeForce GT 240M
Architecture
Terascale 1 (2008−2010)
GT2xx (2009−2012)
GPU code name
M98-XT
N10P-GS
Market segment
Laptop
Laptop
Release date
January 2009
June 2009
Bus support
-
PCI-E 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Core clock speed
550 MHz
550 MHz
CUDA cores
-
48
Floating-point performance
880.0 gflops
116.16 gflops
Gigaflops
-
174
Manufacturing process technology
55 nm
40 nm
Number of transistors
956 million
486 million
Pipelines / CUDA cores
800
48
Power consumption (TDP)
-
23 Watt
Texture fill rate
22.00
8.800
Memory type
GDDR5
DDR3, GDDR2, GDDR3
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
888 MHz
Up to 600 (DDR2), Up to 1066 (DDR3), Up to 800 (GDDR3) MHz
Memory bandwidth
56.83 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
10.1 (10_1)
11.1 (10_1)
CUDA
-
+
OpenCL
1.1
1.1
OpenGL
3.3
2.1
Shader Model
4.1
4.1
Vulkan
N/A
N/A
Power management
-
8.0