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GPU Comparison
NVIDIA GeForce GT 620M vs ATI Mobility Radeon HD 3850 X2
NVIDIA GeForce GT 620M vs ATI Mobility Radeon HD 3850 X2
VS
NVIDIA GeForce GT 620M
ATI Mobility Radeon HD 3850 X2
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 620M and 512MB VRAM Mobility Radeon HD 3850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 620M 's Advantages
Released 4 years and 2 months late
More VRAM (1024GB vs 512GB)
Lower TDP (15W vs 70W)
ATI Mobility Radeon HD 3850 X2 's Advantages
Larger VRAM bandwidth (48.00GB/s vs 28.80GB/s)
224 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 620M
0.253 TFLOPS
Mobility Radeon HD 3850 X2
+46%
0.371 TFLOPS
GeForce GT 620M
VS
Mobility Radeon HD 3850 X2
Graphics Card
Aug 2012
Release Date
Jun 2008
GeForce 600M
Generation
M8x
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
750 MHz
Memory
1024MB
Memory Size
512MB
DDR3
Memory Type
GDDR3
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
48.00GB/s
Render Config
2
SM Count
-
-
Compute Units
4
96
Shading Units
320
16
TMUs
16
4
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SM)
L1 Cache
-
256 KB
L2 Cache
256 KB
Theoretical Performance
2.640 GPixel/s
Pixel Rate
9.280 GPixel/s
10.56 GTexel/s
Texture Rate
9.280 GTexel/s
-
FP16 (half)
-
253.4 GFLOPS
FP32 (float)
371.2 GFLOPS
21.12 GFLOPS
FP64 (double)
74.24 GFLOPS
Graphics Processor
GF108
GPU Name
M88
N13P-GLP-A1
GPU Variant
-
Fermi
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
0.585 billion
Transistors
0.666 billion
116 mm²
Die Size
192 mm²
Board Design
15W
TDP
70W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.1
CUDA
-
5.1
Shader Model
4.1
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