Home GPU Comparison NVIDIA GeForce GTX 765M vs NVIDIA GeForce GT 640M Mac Edition

NVIDIA GeForce GTX 765M vs NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 765M and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 765M 's Advantages
Boost Clock863MHz
Larger VRAM bandwidth (64.13GB/s vs 40.00GB/s)
384 additional rendering cores
NVIDIA GeForce GT 640M Mac Edition 's Advantages
Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)
GeForce GTX 765M +131%
1.326 TFLOPS
GeForce GT 640M Mac Edition
0.572 TFLOPS
VS

Graphics Card

May 2013
Release Date
Feb 2013
GeForce 700M
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16

Clock Speeds

797 MHz
Base Clock
-
863 MHz
Boost Clock
-
1002 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
64bit
64.13GB/s
Bandwidth
40.00GB/s

Render Config

-
SM Count
-
-
Compute Units
-
768
Shading Units
384
64
TMUs
32
16
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
128 KB

Theoretical Performance

13.81 GPixel/s
Pixel Rate
5.960 GPixel/s
55.23 GTexel/s
Texture Rate
23.84 GTexel/s
-
FP16 (half)
-
1326 GFLOPS
FP32 (float)
572.2 GFLOPS
55.23 GFLOPS
FP64 (double)
23.84 GFLOPS

Graphics Processor

GK106
GPU Name
GK107
N14E-GE-B-A1
GPU Variant
N13P-GS
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.54 billion
Transistors
1.27 billion
221 mm²
Die Size
118 mm²

Board Design

75W
TDP
32W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-

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
3.0
5.1
Shader Model
5.1

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