Radeon HD 7870 and GeForce GTX 285 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs GeForce GTX 285
Radeon HD 7870
4779
GeForce GTX 285
1560
Radeon HD 7870
GeForce GTX 285
Architecture
GCN (2011−2017)
Tesla 2.0 (2007−2013)
GPU code name
Pitcairn XT
GT200B
Market segment
Desktop
Desktop
Release date
March 2012
December 2008
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
2x 6-pin
SLI options
-
+
Core clock speed
1000 MHz
648 MHz
CUDA cores
-
240
Floating-point performance
-
708.5 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
2800 Million
1,400 million
Pipelines / CUDA cores
1280
240
Power consumption (TDP)
175 Watt
204 Watt
Maximum GPU temperature
-
105 °C
Texture fill rate
80.00
51.8 billion/sec
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
512 Bit
Memory clock speed
4800 MHz
1242 MHz
Memory bandwidth
153.6 GB/s
159.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
HDTVTwo Dual Link DVI
Multi monitor support
-
+
Eyefinity
+
-
HDMI
+
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
S/PDIF
DirectX
12 (11_1)
11.1 (10_0)
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.6
2.1
Shader Model
5.1
4.0
Vulkan
1.2.131
N/A
High Dynamic-Range Lighting (HDRR)
-
128bit