NVIDIA GeForce GT 640 vs NVIDIA GeForce 8800 GTS Core 112

VS

NVIDIA GeForce GT 640

NVIDIA GeForce 8800 GTS Core 112

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 640MB VRAM GeForce 8800 GTS Core 112 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 4 years and 7 months late

More VRAM (2GB vs 640GB)

272 additional rendering cores

Lower TDP (65W vs 150W)

NVIDIA GeForce 8800 GTS Core 112 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 +157%

0.693 TFLOPS

GeForce 8800 GTS Core 112

0.269 TFLOPS

GeForce GT 640

VS

GeForce 8800 GTS Core 112

Graphics Card

Jun 2012

Release Date

Nov 2007

GeForce 600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

891 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

640MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

320bit

28.51GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

14

384

Shading Units

112

32

TMUs

28

16

ROPs

20

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

80 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

10.00 GPixel/s

28.86 GTexel/s

Texture Rate

28.00 GTexel/s

-

692.7 GFLOPS

FP32 (float)

268.8 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

GK107

GPU Name

G80

GK107-300-A2

GPU Variant

G80-100-K0-A2

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

1.27 billion

Transistors

0.681 billion

118 mm²

Die Size

484 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1 (1.0)

1.1

Vulkan

N/A

3.0

CUDA

1.0

5.1

Shader Model

4.0

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