NVIDIA GeForce GTX 780 Ti 6 GB vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GTX 780 Ti 6 GB

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 780 Ti 6 GB and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 Ti 6 GB 's Advantages

Boost Clock928MHz

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 28.51GB/s)

2496 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 Ti 6 GB +671%

5.345 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce GTX 780 Ti 6 GB

VS

GeForce GT 640

Graphics Card

Unknown

Release Date

Jun 2012

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

875 MHz

Base Clock

-

928 MHz

Boost Clock

-

1753 MHz

Memory Clock

891 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

336.6GB/s

Bandwidth

28.51GB/s

Render Config

-

2880

Shading Units

384

240

TMUs

32

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

55.68 GPixel/s

Pixel Rate

7.216 GPixel/s

222.7 GTexel/s

Texture Rate

28.86 GTexel/s

-

5.345 TFLOPS

FP32 (float)

692.7 GFLOPS

222.7 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

250W

TDP

65W

600 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110B

GPU Name

GK107

-

GPU Variant

GK107-300-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

1.27 billion

561 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.5

CUDA

3.0

5.1

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce GTX 780 Ti 6 GB vs NVIDIA GeForce GT 640

2

NVIDIA GeForce GTX 780 Ti 6 GB vs NVIDIA GeForce RTX 4070 SUPER

3

NVIDIA GeForce GTX 780 Ti 6 GB vs NVIDIA GeForce RTX 2070

4

NVIDIA GeForce GTX 780 Ti 6 GB vs AMD Radeon RX 550 512SP

5

NVIDIA GeForce GTX 780 Ti 6 GB vs AMD Radeon HD 7790

6

NVIDIA GeForce GTX 780 Ti 6 GB vs AMD Radeon Pro W5500

7

NVIDIA GeForce GTX 780 Ti 6 GB vs AMD Radeon R7 350

8

NVIDIA GeForce GTX 780 Ti 6 GB vs MTT S10

9

NVIDIA GeForce GTX 780 Ti 6 GB vs AMD FirePro W2100

10

NVIDIA GeForce GTX 780 Ti 6 GB vs AMD FirePro S7150 x2

Related News

1

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

2

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

3

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

4

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

5

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

6

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

7

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

8

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

9

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game

10

World's First! Intel Arc B580 Graphics Card Arrives Early