Radeon HD 8490 OEM vs Radeon RX 590 GME
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM and 8GB VRAM Radeon RX 590 GME to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 8490 OEM 's Advantages
Lower TDP (35W vs 175W)
Radeon RX 590 GME 's Advantages
Released 6 years and 8 months late
Boost Clock1420MHz
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (256.0GB/s vs 14.40GB/s)
2144 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 8490 OEM
280
Radeon RX 590 GME
+2236%
6543
Graphics Card
Jul 2013
Release Date
Mar 2020
Sea Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1257 MHz
-
Boost Clock
1420 MHz
900 MHz
Memory Clock
2000 MHz
Memory
1024MB
Memory Size
8GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
256bit
14.40GB/s
Bandwidth
256.0GB/s
Render Config
2
Compute Units
36
160
Shading Units
2304
8
TMUs
144
4
ROPs
32
8 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
2 MB
Theoretical Performance
3.500 GPixel/s
Pixel Rate
45.44 GPixel/s
7.000 GTexel/s
Texture Rate
204.5 GTexel/s
-
FP16 (half)
6.543 TFLOPS
280.0 GFLOPS
FP32 (float)
6.543 TFLOPS
-
FP64 (double)
409.0 GFLOPS
Board Design
35W
TDP
175W
200 W
Suggested PSU
450 W
1x DVI
1x DisplayPort 1.1
Outputs
1x HDMI 2.0b
3x DisplayPort 1.4a
None
Power Connectors
1x 8-pin
Graphics Processor
Caicos
GPU Name
Polaris 20
Caicos XTX
GPU Variant
Polaris 20 XTR
(215-0910066)
TeraScale 2
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
40 nm
Process Size
14 nm
0.37 billion
Transistors
5.7 billion
67 mm²
Die Size
232 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.3
5.0
Shader Model
6.7
