Radeon R9 270 and Radeon HD 7790 - video card comparison
Passmark - benchmark score Radeon R9 270 vs Radeon HD 7790
Radeon R9 270
4435
Radeon HD 7790
3183
Radeon R9 270
Radeon HD 7790
Architecture
GCN 1.0 (2012−2020)
GCN 2.0 (2013−2017)
GPU code name
Curacao
Bonaire
Market segment
Desktop
Desktop
Release date
November 2013
March 2013
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin
1x 6-pin
Boost clock speed
925 MHz
-
Core clock speed
-
1000 MHz
Floating-point performance
2,368 gflops
1,792 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
2,080 million
Pipelines / CUDA cores
1280
896
Power consumption (TDP)
150 Watt
85 Watt
Texture fill rate
74.00
56.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
6000 MHz
Memory bandwidth
179.2 GB/s
96 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_0)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
+
1.2.131
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-