Radeon R9 390X and GeForce 8800 GTS 320 - video card comparison
Radeon R9 390X
GeForce 8800 GTS 320
Architecture
GCN (2011−2017)
Tesla (2006−2010)
GPU code name
Grenada XT
G80
Market segment
Desktop
Desktop
Release date
June 2015
February 2007
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
1x 6-pin
Bridgeless CrossFire
1
-
Boost clock speed
1050 MHz
-
Core clock speed
-
513 MHz
Floating-point performance
5,914 gflops
228.1 gflops
Manufacturing process technology
28 nm
90 nm
Number of transistors
6,200 million
681 million
Pipelines / CUDA cores
2816
96
Power consumption (TDP)
275 Watt
143 Watt
Texture fill rate
184.8
24.62
Memory type
GDDR5
GDDR3
Maximum RAM amount
0 MB
320 MB
Memory bus width
512 Bit
320 Bit
Memory clock speed
1050 MHz
1584 MHz
Memory bandwidth
384 GB/s
63.36 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
Eyefinity
+
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
11.1 (10_0)
CUDA
-
+
Mantle
+
-
OpenCL
2.0
1.1
OpenGL
4.6
3.3
Shader Model
6.3
4.0
Vulkan
+
N/A
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-