Home GPU Comparison NVIDIA GeForce GT 650M Mac Edition vs NVIDIA GeForce GT 820M

NVIDIA GeForce GT 650M Mac Edition vs NVIDIA GeForce GT 820M

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 650M Mac Edition and 1024MB VRAM GeForce GT 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 650M Mac Edition 's Advantages
Larger VRAM bandwidth (80.26GB/s vs 14.40GB/s)
288 additional rendering cores
NVIDIA GeForce GT 820M 's Advantages
Released 1 years and 4 months late
More VRAM (1024GB vs 512GB)
Lower TDP (15W vs 45W)

Score

Benchmark

FP32 (float)
GeForce GT 650M Mac Edition +131%
0.691 TFLOPS
GeForce GT 820M
0.298 TFLOPS
VS

Graphics Card

Jul 2012
Release Date
Nov 2013
GeForce 600M
Generation
GeForce 800M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1254 MHz
Memory Clock
900 MHz

Memory

512MB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
64bit
80.26GB/s
Bandwidth
14.40GB/s

Render Config

-
-
-
-
SM Count
2
384
Shading Units
96
32
TMUs
16
16
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

7.200 GPixel/s
Pixel Rate
3.100 GPixel/s
28.80 GTexel/s
Texture Rate
12.40 GTexel/s
-
-
-
691.2 GFLOPS
FP32 (float)
297.6 GFLOPS
28.80 GFLOPS
FP64 (double)
24.80 GFLOPS

Board Design

45W
TDP
15W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

GK107
GPU Name
GF117
N13P-GT-W-A2
GPU Variant
N15V-GM
Kepler
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
0.585 billion
118 mm²
Die Size
116 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1

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