NVIDIA GeForce GT 645M vs NVIDIA GeForce GTX 260M
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 645M and 1024MB VRAM GeForce GTX 260M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 645M 's Advantages
Released 3 years and 7 months late
More VRAM (2GB vs 1024GB)
272 additional rendering cores
Lower TDP (32W vs 65W)
NVIDIA GeForce GTX 260M 's Advantages
Larger VRAM bandwidth (60.80GB/s vs 28.80GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 645M
+76%
0.544 TFLOPS
GeForce GTX 260M
0.308 TFLOPS
Graphics Card
Oct 2012
Release Date
Mar 2009
GeForce 600M
Generation
GeForce 200M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
950 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR3
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
60.80GB/s
Render Config
-
-
-
-
SM Count
14
384
Shading Units
112
32
TMUs
56
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
-
256 KB
L2 Cache
64 KB
-
-
-
Theoretical Performance
5.672 GPixel/s
Pixel Rate
8.800 GPixel/s
22.69 GTexel/s
Texture Rate
30.80 GTexel/s
-
-
-
544.5 GFLOPS
FP32 (float)
308.0 GFLOPS
22.69 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
65W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK107
GPU Name
G92
N13P-GS
GPU Variant
N10E-GT
Kepler
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
1.27 billion
Transistors
0.754 billion
118 mm²
Die Size
324 mm²
Graphics Features
12 (11_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
1.1
5.1
Shader Model
4.0
