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GPU Comparison
AMD Radeon R7 265 vs AMD Radeon R9 390 X2
AMD Radeon R7 265 vs AMD Radeon R9 390 X2
VS
AMD Radeon R7 265
AMD Radeon R9 390 X2
We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265 and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R7 265 's Advantages
Boost Clock925MHz
Lower TDP (150W vs 580W)
AMD Radeon R9 390 X2 's Advantages
Released 1 years and 7 months late
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (345.6GB/s vs 179.2GB/s)
1536 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R7 265
1.894 TFLOPS
Radeon R9 390 X2
+170%
5.12 TFLOPS
Radeon R7 265
VS
Radeon R9 390 X2
Graphics Card
Feb 2014
Release Date
Sep 2015
Volcanic Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
900 MHz
Base Clock
-
925 MHz
Boost Clock
-
1400 MHz
Memory Clock
1350 MHz
Memory
2GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
512bit
179.2GB/s
Bandwidth
345.6GB/s
Render Config
-
SM Count
-
16
Compute Units
40
1024
Shading Units
2560
64
TMUs
160
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
29.60 GPixel/s
Pixel Rate
64.00 GPixel/s
59.20 GTexel/s
Texture Rate
160.0 GTexel/s
-
FP16 (half)
-
1.894 TFLOPS
FP32 (float)
5.120 TFLOPS
118.4 GFLOPS
FP64 (double)
640.0 GFLOPS
Graphics Processor
Pitcairn
GPU Name
Grenada
Pitcairn PRO (215-0828062)
GPU Variant
Grenada PRO (215-0880030)
GCN 1.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
6.2 billion
212 mm²
Die Size
438 mm²
Board Design
150W
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
1x 6-pin
Power Connectors
4x 8-pin
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.0
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
6.3
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