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GPU Comparison
NVIDIA GeForce GTX 850A vs ATI Mobility Radeon HD 3870
NVIDIA GeForce GTX 850A vs ATI Mobility Radeon HD 3870
VS
NVIDIA GeForce GTX 850A
ATI Mobility Radeon HD 3870
We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 850A 's Advantages
Released 5 years and 9 months late
Boost Clock936MHz
320 additional rendering cores
Lower TDP (45W vs 55W)
ATI Mobility Radeon HD 3870 's Advantages
Larger VRAM bandwidth (54.40GB/s vs 28.80GB/s)
Score
Benchmark
FP32 (float)
GeForce GTX 850A
+183%
1.198 TFLOPS
Mobility Radeon HD 3870
0.422 TFLOPS
GeForce GTX 850A
VS
Mobility Radeon HD 3870
Graphics Card
Mar 2014
Release Date
Jun 2008
GeForce 800A
Generation
M8x
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
902 MHz
Base Clock
-
936 MHz
Boost Clock
-
900 MHz
Memory Clock
850 MHz
Memory
2GB
Memory Size
512MB
DDR3
Memory Type
GDDR3
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
54.40GB/s
Render Config
-
SM Count
-
-
Compute Units
4
640
Shading Units
320
40
TMUs
16
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SMM)
L1 Cache
-
2 MB
L2 Cache
256 KB
Theoretical Performance
14.98 GPixel/s
Pixel Rate
10.56 GPixel/s
37.44 GTexel/s
Texture Rate
10.56 GTexel/s
-
FP16 (half)
-
1198 GFLOPS
FP32 (float)
422.4 GFLOPS
37.44 GFLOPS
FP64 (double)
84.48 GFLOPS
Graphics Processor
GM107
GPU Name
M88
N15P-GT-A1
GPU Variant
-
Maxwell
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
1.87 billion
Transistors
0.666 billion
148 mm²
Die Size
192 mm²
Board Design
45W
TDP
55W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
N/A
1.3
Vulkan
N/A
5.0
CUDA
-
5.1
Shader Model
4.1
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