Radeon HD 7950 and GeForce 8800 GTS 320 - video card comparison
Radeon HD 7950
GeForce 8800 GTS 320
Architecture
GCN 1.0 (2012−2020)
Tesla (2006−2010)
GPU code name
Tahiti
G80
Market segment
Desktop
Desktop
Release date
January 2012
February 2007
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Boost clock speed
1250 MHz
-
Compute units
28
-
Core clock speed
-
513 MHz
Floating-point performance
2,867 gflops
228.1 gflops
Manufacturing process technology
28 nm
90 nm
Number of transistors
4,313 million
681 million
Pipelines / CUDA cores
1792
96
Power consumption (TDP)
200 Watt
143 Watt
Texture fill rate
89.60
24.62
Memory type
GDDR5
GDDR3
Maximum RAM amount
3 GB
320 MB
Memory bus width
384 Bit
320 Bit
Memory clock speed
1250 MHz
1584 MHz
Memory bandwidth
240 GB/s
63.36 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x S-Video
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
11.1 (10_0)
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
-
N/A
AppAcceleration
+
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
-
-
ZeroCore
+
-