AMD Radeon R9 280X vs AMD Radeon RX 580X
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
Apr 2018
Generation
Volcanic Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
1257 MHz
Boost Clock
1000 MHz
1340 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
256.0GB/s
Render Config
Compute Units
32
36
Shading Units
2048
2304
TMUs
128
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
2 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
42.88 GPixel/s
Texture Rate
128.0 GTexel/s
193.0 GTexel/s
FP32 (float)
4.096 TFLOPS
6.175 TFLOPS
FP64 (double)
1024 GFLOPS
385.9 GFLOPS
FP16 (half)
—
6.175 TFLOPS
Graphics Processor
GPU Name
Tahiti
Polaris 20
GPU Variant
Tahiti XTL(215-0821065)
Polaris 20 XTX(215-0910038)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
5.7 billion
Die Size
352 mm²
232 mm²
Board Design
TDP
250W
185W
Suggested PSU
600 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
1x 6-pin + 1x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2
Shader Model
5.1
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.