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GPU Comparison
AMD Radeon R9 390 vs NVIDIA GeForce GT 420 OEM
AMD Radeon R9 390 vs NVIDIA GeForce GT 420 OEM
VS
AMD Radeon R9 390
NVIDIA GeForce GT 420 OEM
We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 390 's Advantages
Released 4 years and 9 months late
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (384.0GB/s vs 28.80GB/s)
2512 additional rendering cores
NVIDIA GeForce GT 420 OEM 's Advantages
Lower TDP (50W vs 275W)
Score
Benchmark
FP32 (float)
Radeon R9 390
+3720%
5.12 TFLOPS
GeForce GT 420 OEM
0.134 TFLOPS
Radeon R9 390
VS
GeForce GT 420 OEM
Graphics Card
Jun 2015
Release Date
Sep 2010
Pirate Islands
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1500 MHz
Memory Clock
900 MHz
Memory
8GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
512bit
Memory Bus
128bit
384.0GB/s
Bandwidth
28.80GB/s
Render Config
-
SM Count
1
40
Compute Units
-
2560
Shading Units
48
160
TMUs
4
64
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
1024 KB
L2 Cache
256 KB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
1.400 GPixel/s
160.0 GTexel/s
Texture Rate
2.800 GTexel/s
-
FP16 (half)
-
5.120 TFLOPS
FP32 (float)
134.4 GFLOPS
640.0 GFLOPS
FP64 (double)
11.20 GFLOPS
Graphics Processor
Grenada
GPU Name
GF108
Grenada PRO (215-0880030)
GPU Variant
GF108-200-A1
GCN 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
6.2 billion
Transistors
0.585 billion
438 mm²
Die Size
116 mm²
Board Design
275W
TDP
50W
600 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
6.3
Shader Model
5.1
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