Home GPU Comparison NVIDIA GeForce 840A vs NVIDIA GeForce GTX 675MX Mac Edition

NVIDIA GeForce 840A vs NVIDIA GeForce GTX 675MX Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 1024MB VRAM GeForce GTX 675MX Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages
Released 11 months late
Boost Clock1124MHz
More VRAM (2GB vs 1024GB)
Lower TDP (33W vs 100W)
NVIDIA GeForce GTX 675MX Mac Edition 's Advantages
Larger VRAM bandwidth (160.0GB/s vs 16.02GB/s)
960 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 840A
0.863 TFLOPS
GeForce GTX 675MX Mac Edition +123%
1.933 TFLOPS
VS

Graphics Card

Mar 2014
Release Date
Apr 2013
GeForce 800A
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

1029 MHz
Base Clock
-
1124 MHz
Boost Clock
-
1001 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
256bit
16.02GB/s
Bandwidth
160.0GB/s

Render Config

-
-
-
-
-
-
384
Shading Units
1344
16
TMUs
112
8
ROPs
32
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
16 KB (per SMX)
1024 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

8.992 GPixel/s
Pixel Rate
20.13 GPixel/s
17.98 GTexel/s
Texture Rate
80.53 GTexel/s
-
-
-
863.2 GFLOPS
FP32 (float)
1.933 TFLOPS
26.98 GFLOPS
FP64 (double)
80.53 GFLOPS

Board Design

33W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

GM108
GPU Name
GK104
-
GPU Variant
N13E-GSR-A2
Maxwell
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
Unknown
Transistors
3.54 billion
Unknown
Die Size
294 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
5.0
CUDA
3.0
5.1
Shader Model
5.1

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