Radeon HD 7870 and GeForce 8600 GT - video card comparison
Passmark - benchmark score Radeon HD 7870 vs GeForce 8600 GT
Radeon HD 7870
4779
GeForce 8600 GT
127
Radeon HD 7870
GeForce 8600 GT
Architecture
GCN (2011−2017)
Tesla (2006−2010)
GPU code name
Pitcairn XT
G84
Market segment
Desktop
Desktop
Release date
March 2012
April 2007
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
None
SLI options
-
+
Core clock speed
1000 MHz
540 MHz
Floating-point performance
-
76.16 gflops
Manufacturing process technology
28 nm
80 nm
Number of transistors
2800 Million
289 million
Pipelines / CUDA cores
1280
32
Power consumption (TDP)
175 Watt
47 Watt
Texture fill rate
80.00
8.6 billion/sec
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
700 MHz
Memory bandwidth
153.6 GB/s
22.4 GB/s
Shared memory
-
-
Standard memory config per GPU
-
256 MB
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x S-Video
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
11.1 (10_0)
CUDA
-
1.1
OpenCL
1.2
1.1
OpenGL
4.6
2.1
Shader Model
5.1
4.0
Vulkan
1.2.131
N/A