Radeon R9 295X2 and Radeon HD 7990 - video card comparison
Passmark - benchmark score Radeon R9 295X2 vs Radeon HD 7990
Radeon R9 295X2
8876
Radeon HD 7990
5732
Radeon R9 295X2
Radeon HD 7990
Architecture
GCN 2.0 (2013−2017)
GCN 1.0 (2012−2020)
GPU code name
Vesuvius
Malta
Market segment
Desktop
Desktop
Release date
April 2014
April 2013
Bus support
PCIe 2.1 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 8-pin
2x 8-pin
Boost clock speed
1018 MHz
1000 MHz
Core clock speed
-
950 MHz
Floating-point performance
2x 5,733 gflops
2x 4,096 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
4,313 million
Pipelines / CUDA cores
2816
2048
Power consumption (TDP)
500 Watt
375 Watt
Texture fill rate
179.2
128.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
3 GB
Memory bus width
512 Bit
384 Bit
Memory clock speed
1250 MHz
6000 MHz
Memory bandwidth
640 GB/s
288.0 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
1x DVI, 4x mini-DisplayPort
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
12 (11_1)
Mantle
-
-
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
+
1.2.131
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
-
-
UVD
+
-
ZeroCore
-
-