Radeon HD 7870 and Radeon R7 250 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Radeon R7 250
Radeon HD 7870
4779
Radeon R7 250
1100
Radeon HD 7870
Radeon R7 250
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Pitcairn XT
Oland XT
Market segment
Desktop
Desktop
Release date
March 2012
October 2013
Bus support
-
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
N/A
Boost clock speed
-
1050 MHz
Core clock speed
1000 MHz
-
Floating-point performance
-
716.8 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
950 million
Pipelines / CUDA cores
1280
384
Power consumption (TDP)
175 Watt
75 Watt
Texture fill rate
80.00
25.20
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
1150 MHz
Memory bandwidth
153.6 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
+
-
HDMI
+
+
DisplayPort support
-
-
DirectX
12 (11_1)
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
-
AppAcceleration
-
+
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-