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GPU Comparison
AMD Radeon R9 390 X2 vs AMD Radeon R7 260X
AMD Radeon R9 390 X2 vs AMD Radeon R7 260X
VS
AMD Radeon R9 390 X2
AMD Radeon R7 260X
We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 2GB VRAM Radeon R7 260X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 390 X2 's Advantages
Released 1 years and 11 months late
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (345.6GB/s vs 104.0GB/s)
1664 additional rendering cores
AMD Radeon R7 260X 's Advantages
Lower TDP (115W vs 580W)
Score
Benchmark
FP32 (float)
Radeon R9 390 X2
+159%
5.12 TFLOPS
Radeon R7 260X
1.971 TFLOPS
Radeon R9 390 X2
VS
Radeon R7 260X
Graphics Card
Sep 2015
Release Date
Oct 2013
Pirate Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1350 MHz
Memory Clock
1625 MHz
Memory
8GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
512bit
Memory Bus
128bit
345.6GB/s
Bandwidth
104.0GB/s
Render Config
-
SM Count
-
40
Compute Units
14
2560
Shading Units
896
160
TMUs
56
64
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
256 KB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
17.60 GPixel/s
160.0 GTexel/s
Texture Rate
61.60 GTexel/s
-
FP16 (half)
-
5.120 TFLOPS
FP32 (float)
1.971 TFLOPS
640.0 GFLOPS
FP64 (double)
123.2 GFLOPS
Graphics Processor
Grenada
GPU Name
Bonaire
Grenada PRO (215-0880030)
GPU Variant
Bonaire XTX (215-0839097)
GCN 2.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
6.2 billion
Transistors
2.08 billion
438 mm²
Die Size
160 mm²
Board Design
580W
TDP
115W
950 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
4x 8-pin
Power Connectors
1x 6-pin
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.0
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
6.3
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8
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9
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