NVIDIA GeForce GT 640M Mac vs NVIDIA GeForce GTX 965M Full Specs

Summary

384 Shaders 625MHz	1,024 Shaders 944MHz
524MB GDDR564GB/s	2GB GDDR580GB/s
Peak·FP32·FP16 480 GFLOPS	Peak·FP32·FP16 1.93 TFLOPS
Form Factor Soldered	Form Factor Soldered
TDP 32W	TDP 60W

Highlights

Peak OPS

Peak OPS FP32 FP64 Memory Bandwidth TDP

GeForce GT 640M Mac480 GFLOPSFP32

x1

GeForce GTX 965M1.93 TFLOPSFP32

x4.03

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Theoretical Performance

Clock Speed625MHz UC·Boost·OC	Clock Speed944MHz UC·Boost·OC
Peak OPS 480 GFLOPSFP32	Peak OPS 1.93 TFLOPSFP32
FP32 480 GFLOPS	FP32 1.93 TFLOPS
FP64 20 GFLOPS	FP64 60.42 GFLOPS
Pixel Rate 10 GPixel/s	Pixel Rate 30.2 GPixel/s
Texture Rate 20 GTexel/s	Texture Rate 60.4 GTexel/s

Core Config

Shaders 384 Shaders	Shaders 1,024 Shaders
TMUs 32 TMUs	TMUs 64 TMUs
ROPs 16 ROPs	ROPs 32 ROPs
SMs 2 SMs	SMs 8 SMs

Clocks

Boost Clock 625MHz

Boost Clock 944MHz

Cache

L2 Cache 256KB shared

L2 Cache 1MB shared

Memory

524MB GDDR5	2GB GDDR5
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 4GT/s	Memory Speed 5GT/s
Memory Bandwidth 64GB/s	Memory Bandwidth 80GB/s

Power & Thermals

TDP 32W

TDP 60W

Video Output

Multi-Monitor 3

Multi-Monitor 3

Encoder

Encoder Model NVENC 1

Encoder Model 2x NVENC 3

Decoder

Decoder Model NVDEC 1

Decoder Model NVDEC 1

Card

Form Factor Soldered

Form Factor Soldered

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Kepler	Architecture Maxwell 2
Family GeForce 600	Family GeForce 900
Branding	Branding
Codename NVE7	Codename NV124
Market Segment Laptop	Market Segment Laptop
Release Date Mar 22, 2012	Release Date Jan 5, 2015

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 28nm	Fabrication Node 28nm
Die Size 118mm²	Die Size 398mm²
Transistor Count 1.3 Billion	Transistor Count 5.2 Billion
Transistor Density 10.76 MTr/mm²	Transistor Density 13.07 MTr/mm²

Images

No images available

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Used In

Laptops -	Laptops Surface Book 13(Late 2016)
All-in-Ones iMac 21.5(Late 2012)	All-in-Ones Surface Studio(Late 2016)

Competitors

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