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GPU Comparison
NVIDIA GeForce 615 vs NVIDIA GeForce 840A
NVIDIA GeForce 615 vs NVIDIA GeForce 840A
VS
NVIDIA GeForce 615
NVIDIA GeForce 840A
We compared two Mobile platform GPUs: 1024MB VRAM GeForce 615 and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 615 's Advantages
Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)
NVIDIA GeForce 840A 's Advantages
Released 1 years and 10 months late
Boost Clock1124MHz
More VRAM (2GB vs 1GB)
336 additional rendering cores
Lower TDP (33W vs 49W)
Score
Benchmark
FP32 (float)
GeForce 615
0.127 TFLOPS
GeForce 840A
+579%
0.863 TFLOPS
GeForce 615
VS
GeForce 840A
Graphics Card
May 2012
Release Date
Mar 2014
GeForce 600A
Generation
GeForce 800A
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1029 MHz
-
Boost Clock
1124 MHz
900 MHz
Memory Clock
1001 MHz
Memory
1024MB
Memory Size
2GB
DDR3
Memory Type
DDR3
128bit
Memory Bus
64bit
28.80GB/s
Bandwidth
16.02GB/s
Render Config
1
SM Count
-
-
Compute Units
-
48
Shading Units
384
8
TMUs
16
4
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SM)
L1 Cache
64 KB (per SMM)
256 KB
L2 Cache
1024 KB
Theoretical Performance
1.320 GPixel/s
Pixel Rate
8.992 GPixel/s
5.280 GTexel/s
Texture Rate
17.98 GTexel/s
-
FP16 (half)
-
126.7 GFLOPS
FP32 (float)
863.2 GFLOPS
10.56 GFLOPS
FP64 (double)
26.98 GFLOPS
Graphics Processor
GF108
GPU Name
GM108
-
GPU Variant
-
Fermi
Architecture
Maxwell
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.585 billion
Transistors
Unknown
116 mm²
Die Size
Unknown
Board Design
49W
TDP
33W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.3
2.1
CUDA
5.0
5.1
Shader Model
5.1
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