Radeon HD 3850 and GeForce GT 650M - video card comparison
Passmark - benchmark score Radeon HD 3850 vs GeForce GT 650M
Radeon HD 3850
404
GeForce GT 650M
1241
Radeon HD 3850
GeForce GT 650M
Architecture
TeraScale (2005−2013)
Kepler (2012−2018)
GPU code name
RV670
N13E-GE
Market segment
Desktop
Laptop
Release date
November 2007
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
900 MHz
Core clock speed
668 MHz
Up to 900 MHz
CUDA cores
-
384
Floating-point performance
427.5 gflops
652.8 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
666 million
1,270 million
Pipelines / CUDA cores
320
384
Power consumption (TDP)
75 Watt
45 Watt
Texture fill rate
10.69
Up to 27.2 billion/sec
Memory type
GDDR3
DDR3\GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128bit
Memory clock speed
1660 MHz
1800 - 4000 MHz
Memory bandwidth
53.12 GB/s
Up to 80.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
10.1 (10_1)
12 API
CUDA
-
+
OpenCL
N/A
1.1
OpenGL
3.3
4.5
Shader Model
4.1
5.1
Vulkan
N/A
1.1.126
3D Blu-Ray
-
+
Optimus
-
+