GeForce GTX 650 and Mobility Radeon HD 4850 Mac Edition - video card comparison
GeForce GTX 650
Mobility Radeon HD 4850 Mac Edition
Architecture
Kepler (2012−2018)
TeraScale (2005−2013)
GPU code name
GK107
M98
Market segment
Desktop
Desktop
Release date
September 2012
August 2009
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
One 6-pin
-
Core clock speed
1058 MHz
503 MHz
CUDA cores
384
-
Floating-point performance
812.5 gflops
804.8 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
1,270 million
956 million
Pipelines / CUDA cores
384
800
Power consumption (TDP)
64 Watt
-
Texture fill rate
33.9 billion/sec
20.12
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
128-bit GDDR5
256 Bit
Memory clock speed
5.0 GB/s
1700 MHz
Memory bandwidth
80.0 GB/s
54.4 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One Mini HDMI
No outputs
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
10.1 (10_1)
CUDA
+
-
OpenCL
1.2
1.1
OpenGL
4.3
3.3
Shader Model
5.1
4.1
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-