Radeon HD 4770 and Radeon R7 250X - video card comparison
Passmark - benchmark score Radeon HD 4770 vs Radeon R7 250X
Radeon HD 4770
935
Radeon R7 250X
2336
Radeon HD 4770
Radeon R7 250X
Architecture
TeraScale (2005−2013)
GCN 1.0 (2012−2020)
GPU code name
RV740
Cape Verde
Market segment
Desktop
Desktop
Release date
April 2009
February 2014
Bus support
-
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
1 x 6-pin
Boost clock speed
-
1000 MHz
Core clock speed
750 MHz
-
Floating-point performance
960.0 gflops
1,216 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
826 million
1,500 million
Pipelines / CUDA cores
640
640
Power consumption (TDP)
80 Watt
80 Watt
Texture fill rate
24.00
38.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
3200 MHz
1625 MHz
Memory bandwidth
51.2 GB/s
96 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
1
HDMI
-
+
DisplayPort support
-
-
DirectX
10.1 (10_1)
DirectX® 12
Mantle
-
-
OpenCL
1.1
1.2
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
-
AppAcceleration
-
-
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-