Radeon HD 6790 and Radeon R7 250X - video card comparison
Passmark - benchmark score Radeon HD 6790 vs Radeon R7 250X
Radeon HD 6790
1664
Radeon R7 250X
2336
Radeon HD 6790
Radeon R7 250X
Architecture
Terascale 2 (2009−2015)
GCN 1.0 (2012−2020)
GPU code name
Barts
Cape Verde
Market segment
Desktop
Desktop
Release date
April 2011
February 2014
Bus support
-
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
1 x 6-pin
Boost clock speed
-
1000 MHz
Core clock speed
840 MHz
-
Floating-point performance
1,344.0 gflops
1,216 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
1,500 million
Pipelines / CUDA cores
800
640
Power consumption (TDP)
150 Watt
80 Watt
Texture fill rate
33.60
38.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
1625 MHz
Memory bandwidth
134.4 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
11.2 (11_0)
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
-
AppAcceleration
-
-
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-