AMD Radeon R9 290 vs AMD Radeon R9 390 X2
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Sep 2015
Generation
Volcanic Islands
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1350 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
512bit
Bandwidth
320.0GB/s
345.6GB/s
Render Config
Compute Units
40
40
Shading Units
2560
2560
TMUs
160
160
ROPs
64
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
1024 KB
Theoretical Performance
Pixel Rate
60.61 GPixel/s
64.00 GPixel/s
Texture Rate
151.5 GTexel/s
160.0 GTexel/s
FP32 (float)
4.849 TFLOPS
5.120 TFLOPS
FP64 (double)
606.1 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Hawaii
Grenada
GPU Variant
Hawaii PRO(215-0852020)
Grenada PRO(215-0880030)
Architecture
GCN 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
6.2 billion
6.2 billion
Die Size
438 mm²
438 mm²
Board Design
TDP
275W
580W
Suggested PSU
600 W
950 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
4x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.0
Vulkan
1.2
1.2
Shader Model
6.3
6.3
📊 Benchmark
3DMark Time Spy
3,694
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