NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 295

VS

NVIDIA GeForce GT 640

NVIDIA GeForce GTX 295

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 896MB VRAM GeForce GTX 295 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 3 years and 5 months late

More VRAM (2GB vs 896GB)

144 additional rendering cores

Lower TDP (65W vs 289W)

NVIDIA GeForce GTX 295 's Advantages

Larger VRAM bandwidth (111.9GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 +16%

0.693 TFLOPS

GeForce GTX 295

0.596 TFLOPS

GeForce GT 640

VS

GeForce GTX 295

Graphics Card

Jun 2012

Release Date

Jan 2009

GeForce 600

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

999 MHz

Memory

2GB

Memory Size

896MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

448bit

28.51GB/s

Bandwidth

111.9GB/s

Render Config

-

SM Count

30

384

Shading Units

240

32

TMUs

80

16

ROPs

28

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

224 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

16.13 GPixel/s

28.86 GTexel/s

Texture Rate

46.08 GTexel/s

-

692.7 GFLOPS

FP32 (float)

596.2 GFLOPS

28.86 GFLOPS

FP64 (double)

74.52 GFLOPS

Board Design

65W

TDP

289W

250 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x HDMI

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK107

GPU Name

GT200B

GK107-300-A2

GPU Variant

G200-401-B3

Kepler

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

1.4 billion

118 mm²

Die Size

470 mm²

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

1.3

5.1

Shader Model

4.0

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