NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GTX 295

VS

NVIDIA GeForce GT 640 Rev. 2 NVIDIA GeForce GTX 295

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 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 Rev. 2 's Advantages

Released 4 years and 4 months late

More VRAM (1024GB vs 896GB)

144 additional rendering cores

Lower TDP (49W vs 289W)

NVIDIA GeForce GTX 295 's Advantages

Larger VRAM bandwidth (111.9GB/s vs 40.06GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 Rev. 2 +34%

0.803 TFLOPS

GeForce GTX 295

0.596 TFLOPS

GeForce GT 640 Rev. 2

VS

GeForce GTX 295

Graphics Card

May 2013

Release Date

Jan 2009

GeForce 600

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 2.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1252 MHz

Memory Clock

999 MHz

Memory

1024MB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

448bit

40.06GB/s

Bandwidth

111.9GB/s

Render Config

-

SM Count

30

-

Compute Units

-

384

Shading Units

240

32

TMUs

80

8

ROPs

28

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

512 KB

L2 Cache

224 KB

Theoretical Performance

8.368 GPixel/s

Pixel Rate

16.13 GPixel/s

33.47 GTexel/s

Texture Rate

46.08 GTexel/s

-

FP16 (half)

-

803.3 GFLOPS

FP32 (float)

596.2 GFLOPS

33.47 GFLOPS

FP64 (double)

74.52 GFLOPS

Graphics Processor

GK208

GPU Name

GT200B

GK208-400-A1

GPU Variant

G200-401-B3

Kepler 2.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.02 billion

Transistors

1.4 billion

87 mm²

Die Size

470 mm²

Board Design

49W

TDP

289W

200 W

Suggested PSU

600 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

2x DVI 1x HDMI

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

1.3

5.1

Shader Model

4.0

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