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GPU Comparison
AMD Radeon HD 6970 X2 vs AMD Radeon R9 390
AMD Radeon HD 6970 X2 vs AMD Radeon R9 390
VS
AMD Radeon HD 6970 X2
AMD Radeon R9 390
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 8GB VRAM Radeon R9 390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 390 's Advantages
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (384.0GB/s vs 176.0GB/s)
1024 additional rendering cores
Lower TDP (275W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6970 X2
2.703 TFLOPS
Radeon R9 390
+89%
5.12 TFLOPS
Radeon HD 6970 X2
VS
Radeon R9 390
Graphics Card
Unknown
Release Date
Jun 2015
Northern Islands
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
1500 MHz
Memory
2GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
512bit
176.0GB/s
Bandwidth
384.0GB/s
Render Config
-
SM Count
-
24
Compute Units
40
1536
Shading Units
2560
96
TMUs
160
32
ROPs
64
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
1024 KB
Theoretical Performance
28.16 GPixel/s
Pixel Rate
64.00 GPixel/s
84.48 GTexel/s
Texture Rate
160.0 GTexel/s
-
FP16 (half)
-
2.703 TFLOPS
FP32 (float)
5.120 TFLOPS
-
FP64 (double)
640.0 GFLOPS
Graphics Processor
Antilles
GPU Name
Grenada
Antilles XT (215-0807027)
GPU Variant
Grenada PRO (215-0880030)
TeraScale 3
Architecture
GCN 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
2.64 billion
Transistors
6.2 billion
389 mm²
Die Size
438 mm²
Board Design
375W
TDP
275W
750 W
Suggested PSU
600 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
3x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.0
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
6.3
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