Radeon R9 290X and Radeon HD 6870 - video card comparison
Passmark - benchmark score Radeon R9 290X vs Radeon HD 6870
Radeon R9 290X
7648
Radeon HD 6870
2285
Radeon R9 290X
Radeon HD 6870
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Hawaii XT
RV940 Barts
Market segment
Desktop
Desktop
Release date
October 2013
October 2010
Bus support
PCIe 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
2x 6-pin
Boost clock speed
947 MHz
900 MHz
Floating-point performance
5,632 gflops
2,016.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
6,200 million
1,700 million
Pipelines / CUDA cores
2816
1120
Power consumption (TDP)
250 Watt
151 Watt
Texture fill rate
176.0
50.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1250 MHz
1050 MHz
Memory bandwidth
320 GB/s
134.4 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
+
1
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
DirectX® 11
Mantle
-
-
OpenCL
2.0
1.2
OpenGL
4.6
4.4
Shader Model
6.3
5.0
Vulkan
+
-
AppAcceleration
+
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-