Radeon HD 4770 and GeForce GTX 275 - video card comparison
Passmark - benchmark score Radeon HD 4770 vs GeForce GTX 275
Radeon HD 4770
935
GeForce GTX 275
1458
Radeon HD 4770
GeForce GTX 275
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
RV740
GT200B
Market segment
Desktop
Desktop
Release date
April 2009
January 2009
Bus support
-
PCI-E 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
2x 6-pin
SLI options
-
+
Core clock speed
750 MHz
633 MHz
CUDA cores
-
240
Floating-point performance
960.0 gflops
673.9 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
826 million
1,400 million
Pipelines / CUDA cores
640
240
Power consumption (TDP)
80 Watt
219 Watt
Maximum GPU temperature
-
105 °C
Texture fill rate
24.00
50.6 billion/sec
Memory type
GDDR5
GDDR3
Maximum RAM amount
512 MB
896 MB
Memory bus width
128 Bit
448 Bit
Memory clock speed
3200 MHz
1134 MHz
Memory bandwidth
51.2 GB/s
127.0 GB/s
Display Connectors
2x DVI, 1x S-Video
Two Dual Link DVI
Multi monitor support
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
S/PDIF
DirectX
10.1 (10_1)
11.1 (10_0)
CUDA
-
+
OpenCL
1.1
1.1
OpenGL
3.3
3.0
Shader Model
4.1
4.0
Vulkan
N/A
N/A