NVIDIA GeForce GT 820M vs NVIDIA GeForce 615
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 1024MB VRAM GeForce 615 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Released 1 years and 6 months late
48 additional rendering cores
Lower TDP (15W vs 49W)
NVIDIA GeForce 615 's Advantages
Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 820M
+134%
0.298 TFLOPS
GeForce 615
0.127 TFLOPS
Graphics Card
Nov 2013
Release Date
May 2012
GeForce 800M
Generation
GeForce 600A
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
1024MB
DDR3
Memory Type
DDR3
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
28.80GB/s
Render Config
-
-
-
2
SM Count
1
96
Shading Units
48
16
TMUs
8
8
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
128 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
1.320 GPixel/s
12.40 GTexel/s
Texture Rate
5.280 GTexel/s
-
-
-
297.6 GFLOPS
FP32 (float)
126.7 GFLOPS
24.80 GFLOPS
FP64 (double)
10.56 GFLOPS
Board Design
15W
TDP
49W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GF117
GPU Name
GF108
N15V-GM
GPU Variant
-
Fermi 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
0.585 billion
Transistors
0.585 billion
116 mm²
Die Size
116 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
2.1
5.1
Shader Model
5.1
