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GPU Comparison
AMD Radeon RX 580X vs NVIDIA GeForce GT 640
AMD Radeon RX 580X vs NVIDIA GeForce GT 640
VS
AMD Radeon RX 580X
NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580X and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 580X 's Advantages
Released 5 years and 10 months late
Boost Clock1340MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 28.51GB/s)
1920 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 185W)
Score
Benchmark
FP32 (float)
Radeon RX 580X
+791%
6.175 TFLOPS
GeForce GT 640
0.693 TFLOPS
Radeon RX 580X
VS
GeForce GT 640
Graphics Card
Apr 2018
Release Date
Jun 2012
Polaris
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1257 MHz
Base Clock
-
1340 MHz
Boost Clock
-
2000 MHz
Memory Clock
891 MHz
Memory
8GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
256.0GB/s
Bandwidth
28.51GB/s
Render Config
-
SM Count
-
36
Compute Units
-
2304
Shading Units
384
144
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
256 KB
Theoretical Performance
42.88 GPixel/s
Pixel Rate
7.216 GPixel/s
193.0 GTexel/s
Texture Rate
28.86 GTexel/s
6.175 TFLOPS
FP16 (half)
-
6.175 TFLOPS
FP32 (float)
692.7 GFLOPS
385.9 GFLOPS
FP64 (double)
28.86 GFLOPS
Graphics Processor
Polaris 20
GPU Name
GK107
Polaris 20 XTX (215-0910038)
GPU Variant
GK107-300-A2
GCN 4.0
Architecture
Kepler
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
5.7 billion
Transistors
1.27 billion
232 mm²
Die Size
118 mm²
Board Design
185W
TDP
65W
450 W
Suggested PSU
250 W
1x HDMI 2.0b 3x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 8-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
6.4
Shader Model
5.1
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