NVIDIA GeForce GT 640 OEM vs NVIDIA GeForce 8800 GT Mac Edition

VS

NVIDIA GeForce GT 640 OEM NVIDIA GeForce 8800 GT Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 OEM and 512MB VRAM GeForce 8800 GT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM 's Advantages

Released 4 years and 2 months late

272 additional rendering cores

Lower TDP (50W vs 125W)

NVIDIA GeForce 8800 GT Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM +82%

0.612 TFLOPS

GeForce 8800 GT Mac Edition

0.336 TFLOPS

GeForce GT 640 OEM

VS

GeForce 8800 GT Mac Edition

Graphics Card

Apr 2012

Release Date

Feb 2008

GeForce 600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

891 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

57.60GB/s

Render Config

-

SM Count

14

-

Compute Units

-

384

Shading Units

112

32

TMUs

56

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

64 KB

Theoretical Performance

6.376 GPixel/s

Pixel Rate

9.600 GPixel/s

25.50 GTexel/s

Texture Rate

33.60 GTexel/s

-

FP16 (half)

-

612.1 GFLOPS

FP32 (float)

336.0 GFLOPS

25.50 GFLOPS

FP64 (double)

-

Graphics Processor

GK107

GPU Name

G92

GK107-320-A2

GPU Variant

G92-270-A2

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

1.27 billion

Transistors

0.754 billion

118 mm²

Die Size

324 mm²

Board Design

50W

TDP

125W

250 W

Suggested PSU

300 W

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

Outputs

2x DVI

None

Power Connectors

1x 6-pin

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

1.1

5.1

Shader Model

4.0

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