AMD Radeon RX 640 Mobile vs AMD Radeon R9 290X
GPU · Specs Compare
Graphics Card
Release Date
May 2019
Oct 2013
Generation
Mobility Radeon
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
Memory Clock
1500 MHz
1250 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
64bit
512bit
Bandwidth
48.00GB/s
320.0GB/s
Render Config
Compute Units
10
44
Shading Units
640
2816
TMUs
40
176
ROPs
16
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
19.49 GPixel/s
64.00 GPixel/s
Texture Rate
48.72 GTexel/s
176.0 GTexel/s
FP16 (half)
1.559 TFLOPS
—
FP32 (float)
1.559 TFLOPS
5.632 TFLOPS
FP64 (double)
97.44 GFLOPS
704.0 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Hawaii
GPU Variant
Polaris 23 XT
Hawaii XT(215-0852000)
Architecture
GCN 4.0
GCN 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
2.2 billion
6.2 billion
Die Size
103 mm²
438 mm²
Board Design
TDP
50W
290W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
—
600 W
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.2.170
Shader Model
6.4
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.