Radeon HD 4890 and Radeon HD 7750 - video card comparison
Passmark - benchmark score Radeon HD 4890 vs Radeon HD 7750
Radeon HD 4890
1552
Radeon HD 7750
1754
Radeon HD 4890
Radeon HD 7750
Architecture
TeraScale (2005−2013)
GCN 1.0 (2012−2020)
GPU code name
RV790
Cape Verde
Market segment
Desktop
Desktop
Release date
April 2009
February 2012
Bus support
-
PCIe 2.1 x16
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
800 MHz
Core clock speed
850 MHz
-
Floating-point performance
1,360.0 gflops
819.2 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
959 million
1,500 million
Pipelines / CUDA cores
800
512
Power consumption (TDP)
190 Watt
75 Watt
Texture fill rate
34.00
25.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3900 MHz
1125 MHz
Memory bandwidth
124.8 GB/s
72 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
-
1
HDMI
-
+
DisplayPort support
-
+
DirectX
10.1 (10_1)
DirectX® 11
Mantle
-
-
OpenCL
1.1
1.2
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-