GeForce GTX 680M vs GeForce 805A
We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 680M 's Advantages
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (115.2GB/s vs 16.02GB/s)
1152 additional rendering cores
GeForce 805A 's Advantages
Released 2 years and 1 months late
Lower TDP (15W vs 100W)
Score
Benchmark
FP32 (float)
GeForce GTX 680M
+600%
2038
GeForce 805A
291
Graphics Card
Jun 2012
Release Date
Jul 2014
GeForce 600M
Generation
GeForce 800A
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
719 MHz
Base Clock
719 MHz
758 MHz
Boost Clock
758 MHz
900 MHz
Memory Clock
1001 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
16.02GB/s
Render Config
1344
Shading Units
192
112
TMUs
16
32
ROPs
8
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
512 KB
Theoretical Performance
21.22 GPixel/s
Pixel Rate
6.064 GPixel/s
84.90 GTexel/s
Texture Rate
12.13 GTexel/s
2.038 TFLOPS
FP32 (float)
291.1 GFLOPS
84.90 GFLOPS
FP64 (double)
12.13 GFLOPS
Board Design
100W
TDP
15W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
GK104
GPU Name
GK208
N13E-GTX-A2
GPU Variant
-
Kepler
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
1.02 billion
294 mm²
Die Size
87 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.1
3.0
CUDA
3.5
5.1
Shader Model
5.1
