Radeon HD 8490 OEM and Radeon RX 7800 XT - video card comparison
Radeon HD 8490 OEM
Radeon RX 7800 XT
Architecture
TeraScale 2 (2009−2015)
RDNA 3
GPU code name
Caicos
Navi 32
Market segment
Desktop
Desktop
Release date
July 2013
August 2023
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
-
2430 MHz
Core clock speed
875 MHz
-
Floating-point performance
280.0 gflops
-
Manufacturing process technology
40 nm
5 nm
Number of transistors
370 million
28,100 million
Pipelines / CUDA cores
160
3840
Power consumption (TDP)
35 Watt
263 Watt
Texture fill rate
7.000
604.8
Memory type
DDR3
GDDR6
Maximum RAM amount
1 GB
16 GB
Memory bus width
64 Bit
256 Bit
Memory clock speed
1800 MHz
19500 MHz
Memory bandwidth
14.4 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x DisplayPort
1x HDMI 2.1a, 3x DisplayPort 2.1
HDMI
-
+
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenCL
1.2
2.2
OpenGL
4.4
4.6
Shader Model
5.0
6.7
Vulkan
N/A
1.3