Radeon HD 7850 and Radeon R9 M270X - video card comparison
Passmark - benchmark score Radeon HD 7850 vs Radeon R9 M270X
Radeon HD 7850
3976
Radeon R9 M270X
1240
Radeon HD 7850
Radeon R9 M270X
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Pitcairn
Venus
Market segment
Desktop
Desktop
Release date
March 2012
March 2014
Bus support
PCIe 2.1 x16
PCIe 3.0 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
1000 MHz
775 MHz
Compute units
-
10
Core clock speed
-
725 MHz
Floating-point performance
1,761 gflops
1,536 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
1,500 million
Pipelines / CUDA cores
1024
640
Power consumption (TDP)
130 Watt
-
Texture fill rate
55.04
31.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1200 MHz
1125 MHz
Memory bandwidth
153.6 GB/s
72 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
1
HDMI
+
-
DisplayPort support
-
-
DirectX
12
DirectX® 11
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
5.1
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+