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GPU Comparison
AMD Radeon R9 295X2 vs AMD Radeon R9 390X
AMD Radeon R9 295X2 vs AMD Radeon R9 390X
VS
AMD Radeon R9 295X2
AMD Radeon R9 390X
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 390X 's Advantages
Released 1 years and 2 months late
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (384.0GB/s vs 320.0GB/s)
Lower TDP (275W vs 500W)
Score
Benchmark
FP32 (float)
Radeon R9 295X2
5.733 TFLOPS
Radeon R9 390X
+3%
5.914 TFLOPS
Radeon R9 295X2
VS
Radeon R9 390X
Graphics Card
Apr 2014
Release Date
Jun 2015
Volcanic Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1250 MHz
Memory Clock
1500 MHz
Memory
4GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
512bit
Memory Bus
512bit
320.0GB/s
Bandwidth
384.0GB/s
Render Config
-
SM Count
-
44
Compute Units
44
2816
Shading Units
2816
176
TMUs
176
64
ROPs
64
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
1024 KB
Theoretical Performance
65.15 GPixel/s
Pixel Rate
67.20 GPixel/s
179.2 GTexel/s
Texture Rate
184.8 GTexel/s
-
FP16 (half)
-
5.733 TFLOPS
FP32 (float)
5.914 TFLOPS
716.7 GFLOPS
FP64 (double)
739.2 GFLOPS
Graphics Processor
Vesuvius
GPU Name
Grenada
Vesuvius XT (215-0852022)
GPU Variant
Grenada XT (215-0880004)
GCN 2.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
6.2 billion
Transistors
6.2 billion
438 mm²
Die Size
438 mm²
Board Design
500W
TDP
275W
900 W
Suggested PSU
600 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 8-pin
Power Connectors
1x 6-pin + 1x 8-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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