AMD Radeon R9 290X vs AMD Radeon R9 280X2
GPU Specs Compare
Graphics Card
Release Date
Oct 2013
Unknown
Generation
Volcanic Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1500 MHz
Base Clock
-
950 MHz
Boost Clock
-
1000 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
384bit
Bandwidth
320.0GB/s
288.0GB/s
Render Config
Compute Units
44
32
Shading Units
2816
2048
TMUs
176
128
ROPs
64
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
768 KB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
32.00 GPixel/s
Texture Rate
176.0 GTexel/s
128.0 GTexel/s
FP32 (float)
5.632 TFLOPS
4.096 TFLOPS
FP64 (double)
704.0 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Hawaii
Tahiti
GPU Variant
Hawaii XT(215-0852000)
Tahiti XTL(215-0821065)
Architecture
GCN 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
6.2 billion
4.313 billion
Die Size
438 mm²
352 mm²
Board Design
TDP
290W
375W
Suggested PSU
600 W
750 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
6x mini-DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
3x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2.170
1.2
Shader Model
6.5
5.1