AMD Radeon R9 285X vs AMD Radeon R9 290X

GPU · Specs Compare

Products
GPU AMD Radeon R9 285X AMD
GPU AMD Radeon R9 290X AMD · 2013-10
Graphics Card
Release Date
Unknown
Oct 2013
Generation
Volcanic Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1250 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
512bit
Bandwidth
264.0GB/s
320.0GB/s
Render Config
Compute Units
32
44
Shading Units
2048
2816
TMUs
128
176
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
1024 KB
Theoretical Performance
Pixel Rate
32.06 GPixel/s
64.00 GPixel/s
Texture Rate
128.3 GTexel/s
176.0 GTexel/s
FP32 (float)
4.104 TFLOPS
5.632 TFLOPS
FP64 (double)
—
704.0 GFLOPS
Graphics Processor
GPU Name
Tonga
Hawaii
GPU Variant
Tonga XT(215-0851313)
Hawaii XT(215-0852000)
Architecture
GCN 3.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5 billion
6.2 billion
Die Size
366 mm²
438 mm²
Board Design
TDP
200W
290W
Suggested PSU
550 W
600 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
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.2.170
Shader Model
6.3
6.5
▲ Specs Compare Data sourced from official specifications and benchmark tests.