NVIDIA GeForce 805A vs NVIDIA GeForce GT 640M

VS

NVIDIA GeForce 805A

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Released 2 years and 4 months late

Boost Clock758MHz

Lower TDP (15W vs 32W)

NVIDIA GeForce GT 640M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)

192 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

GeForce GT 640M +64%

0.48 TFLOPS

GeForce 805A

VS

GeForce GT 640M

Graphics Card

Jul 2014

Release Date

Mar 2012

GeForce 800A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

1001 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

28.80GB/s

Render Config

-

192

Shading Units

384

16

TMUs

32

8

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

5.000 GPixel/s

12.13 GTexel/s

Texture Rate

20.00 GTexel/s

-

291.1 GFLOPS

FP32 (float)

480.0 GFLOPS

12.13 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

15W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208

GPU Name

GK107

-

GPU Variant

N13P-GS

Kepler 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

1.27 billion

87 mm²

Die Size

118 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

3.5

CUDA

3.0

5.1

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce 805A vs AMD Radeon HD 6470M

2

NVIDIA GeForce 805A vs AMD Radeon HD 8690M

3

NVIDIA GeForce 805A vs AMD Radeon RX 580 Mobile

4

NVIDIA GeForce 805A vs NVIDIA NVS 5400M

5

NVIDIA GeForce 805A vs AMD Radeon Pro 580

6

NVIDIA GeForce 805A vs AMD Radeon R9 M390X

7

NVIDIA GeForce 805A vs AMD Radeon R5 A255

8

NVIDIA GeForce 805A vs AMD Radeon 550X Mobile

9

NVIDIA GeForce 805A vs AMD Radeon HD 6550M

10

NVIDIA GeForce 805A vs NVIDIA GeForce 845M

Related News

1

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

2

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

3

CXMT Reportedly Achieves 80% Yield in DDR5 Production

4

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

5

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

6

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

7

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

8

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

9

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

10

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