NVIDIA GeForce RTX 3080 Ti Mobile vs NVIDIA GeForce GTX 870M
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Mar 2014
Generation
GeForce 30 Mobile
GeForce 800M
Type
Mobile
Mobile
Bus Interface
PCIe 4.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
810 MHz
941 MHz
Boost Clock
1260 MHz
967 MHz
Memory Clock
2000 MHz
1250 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
192bit
Bandwidth
512.0GB/s
120.0GB/s
Render Config
SM Count
58
—
Shading Units
7424
1344
TMUs
232
112
ROPs
96
24
Tensor Cores
232
—
RT Cores
58
—
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
4 MB
384 KB
Theoretical Performance
Pixel Rate
121.0 GPixel/s
27.08 GPixel/s
Texture Rate
292.3 GTexel/s
108.3 GTexel/s
FP16 (half)
18.71 TFLOPS
—
FP32 (float)
18.71 TFLOPS
2.599 TFLOPS
FP64 (double)
292.3 GFLOPS
108.3 GFLOPS
Graphics Processor
GPU Name
GA103S
GK104
GPU Variant
GN20-E8-A1
N15E-GT-A2
Architecture
Ampere
Kepler
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
Unknown
3.54 billion
Die Size
496 mm²
294 mm²
Board Design
TDP
115W
100W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
8.6
3.0
Shader Model
6.5
5.1
Benchmark
3DMark Time Spy
12,905
—
3DMark Time Spy Extreme
6,164
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.