GeForce GTX 285 Mac Edition and Radeon R7 M270DX - video card comparison
GeForce GTX 285 Mac Edition
Radeon R7 M270DX
Architecture
Tesla 2.0 (2007−2013)
GCN 3.0 (2014−2017)
GPU code name
GT200B
Topaz
Market segment
Desktop
Desktop
Release date
January 2009
June 2014
Interface
PCIe 2.0 x16
IGP
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
940 MHz
Core clock speed
648 MHz
900 MHz
Floating-point performance
708.5 gflops
-
Manufacturing process technology
55 nm
28 nm
Number of transistors
1,400 million
1,550 million
Pipelines / CUDA cores
240
384
Power consumption (TDP)
204 Watt
-
Texture fill rate
51.84
22.56
Memory type
GDDR3
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
512 Bit
System Shared
Memory clock speed
2484 MHz
System Shared
Memory bandwidth
159.0 GB/s
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
11.1 (10_0)
12 (12_0)
CUDA
1.3
-
OpenCL
1.1
2.0
OpenGL
3.3
4.6
Shader Model
4.0
6.3
Vulkan
N/A
1.2.131