Radeon R9 270X and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon R9 270X vs Radeon HD 3870
Radeon R9 270X
5036
Radeon HD 3870
572
Radeon R9 270X
Radeon HD 3870
Architecture
GCN (2011−2017)
TeraScale (2005−2013)
GPU code name
Curacao XT
RV670
Market segment
Desktop
Desktop
Release date
October 2013
November 2007
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2 x 6-pin
1x 6-pin
Boost clock speed
1050 MHz
-
Core clock speed
-
777 MHz
Floating-point performance
2,688 gflops
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
2,800 million
666 million
Pipelines / CUDA cores
1280
320
Power consumption (TDP)
180 Watt
106 Watt
Texture fill rate
84.00
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
4 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
2252 MHz
Memory bandwidth
179.2 GB/s
72.06 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
Eyefinity
+
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
10.1 (10_1)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
+
N/A
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-