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