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GPU Comparison
AMD Radeon R9 285 vs AMD Radeon R9 290X2
AMD Radeon R9 285 vs AMD Radeon R9 290X2
VS
AMD Radeon R9 285
AMD Radeon R9 290X2
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 4GB VRAM Radeon R9 290X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 285 's Advantages
Lower TDP (190W vs 580W)
AMD Radeon R9 290X2 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (345.6GB/s vs 176.0GB/s)
1024 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 285
3.29 TFLOPS
Radeon R9 290X2
+71%
5.632 TFLOPS
Radeon R9 285
VS
Radeon R9 290X2
Graphics Card
Sep 2014
Release Date
Jun 2014
Volcanic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
1350 MHz
Memory
2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
512bit
176.0GB/s
Bandwidth
345.6GB/s
Render Config
-
SM Count
-
28
Compute Units
44
1792
Shading Units
2816
112
TMUs
176
32
ROPs
64
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
1024 KB
Theoretical Performance
29.38 GPixel/s
Pixel Rate
64.00 GPixel/s
102.8 GTexel/s
Texture Rate
176.0 GTexel/s
3.290 TFLOPS
FP16 (half)
-
3.290 TFLOPS
FP32 (float)
5.632 TFLOPS
205.6 GFLOPS
FP64 (double)
704.0 GFLOPS
Graphics Processor
Tonga
GPU Name
Hawaii
Tonga PRO (215-0851128)
GPU Variant
Hawaii XT (215-0852000)
GCN 3.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
6.2 billion
366 mm²
Die Size
438 mm²
Board Design
190W
TDP
580W
450 W
Suggested PSU
950 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 6-pin
Power Connectors
4x 8-pin
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2.170
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
6.3
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