Radeon R9 290 and Radeon HD 7770M - video card comparison
Radeon R9 290
Radeon HD 7770M
Architecture
GCN 2.0 (2013−2017)
GCN (2011−2017)
GPU code name
Hawaii
Chelsea XT
Market segment
Desktop
Laptop
Release date
November 2013
April 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Core clock speed
947 MHz
675 MHz
Floating-point performance
4,849 gflops
691.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
1,500 million
Pipelines / CUDA cores
2560
512
Power consumption (TDP)
275 Watt
32 Watt
Texture fill rate
151.5
21.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
512 Bit
128 Bit
Memory clock speed
5000 MHz
4000 MHz
Memory bandwidth
320.0 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
1.2.131
1.2.131