Radeon HD 4890 and GeForce GT 540M - video card comparison
Passmark - benchmark score Radeon HD 4890 vs GeForce GT 540M
Radeon HD 4890
1552
GeForce GT 540M
493
Radeon HD 4890
GeForce GT 540M
Architecture
TeraScale (2005−2013)
Fermi (2010−2014)
GPU code name
RV790
N12P-GS
Market segment
Desktop
Laptop
Release date
April 2009
January 2011
Interface
PCIe 2.0 x16
MXM-A (3.0)
Supplementary power connectors
2x 6-pin
-
Core clock speed
850 MHz
672 MHz
CUDA cores
-
96
Floating-point performance
1,360.0 gflops
258.05 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
959 million
585 million
Pipelines / CUDA cores
800
96
Power consumption (TDP)
190 Watt
35 Watt
Texture fill rate
34.00
10.8 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3900 MHz
900 MHz
Memory bandwidth
124.8 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 API
CUDA
-
+
OpenCL
1.1
1.1
OpenGL
3.3
4.5
Shader Model
4.1
5.1
Vulkan
N/A
N/A
3D Blu-Ray
-
+
3D Gaming
-
+
Optimus
-
+