GeForce GTX 275 and Radeon HD 4650 - video card comparison
Passmark - benchmark score GeForce GTX 275 vs Radeon HD 4650
GeForce GTX 275
1458
Radeon HD 4650
246
GeForce GTX 275
Radeon HD 4650
Architecture
Tesla 2.0 (2007−2013)
TeraScale (2005−2013)
GPU code name
GT200B
RV730
Market segment
Desktop
Desktop
Release date
January 2009
September 2008
Bus support
PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
-
SLI options
+
-
Core clock speed
633 MHz
600 MHz
CUDA cores
240
-
Floating-point performance
673.9 gflops
384.0 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
1,400 million
514 million
Pipelines / CUDA cores
240
320
Power consumption (TDP)
219 Watt
48 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
50.6 billion/sec
19.20
Memory type
GDDR3
GDDR3
Maximum RAM amount
896 MB
256 MB
Memory bus width
448 Bit
128 Bit
Memory clock speed
1134 MHz
1400 MHz
Memory bandwidth
127.0 GB/s
22.4 GB/s
Display Connectors
Two Dual Link DVI
2x DVI, 1x S-Video
Multi monitor support
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
1.1
OpenGL
3.0
3.3
Shader Model
4.0
4.1
Vulkan
N/A
N/A