GeForce GTX 260 and Radeon HD 3870 Mac Edition - video card comparison
GeForce GTX 260
Radeon HD 3870 Mac Edition
Architecture
Tesla 2.0 (2007−2013)
TeraScale (2005−2013)
GPU code name
GT200
RV670
Market segment
Desktop
Desktop
Release date
June 2008
June 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
SLI options
+
-
Core clock speed
576 MHz
777 MHz
CUDA cores
192
-
Floating-point performance
476.9 gflops
497.3 gflops
Manufacturing process technology
65 nm
55 nm
Number of transistors
1,400 million
666 million
Pipelines / CUDA cores
192
320
Power consumption (TDP)
182 Watt
106 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
36.9 billion/sec
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
896 MB
512 MB
Memory bus width
448 Bit
256 Bit
Memory clock speed
999 MHz
2252 MHz
Memory bandwidth
111.9 GB/s
72.06 GB/s
Display Connectors
Dual Link DVIHDTV
2x DVI, 1x S-Video
Multi monitor support
+
-
HDMI
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
2.1
3.3
Shader Model
4.0
4.1
Vulkan
N/A
N/A