NVIDIA GeForce GTX 280 vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GTX 280 NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 280 and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 280 's Advantages

Larger VRAM bandwidth (141.7GB/s vs 40.06GB/s)

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Released 4 years and 11 months late

144 additional rendering cores

Lower TDP (49W vs 236W)

Score

Benchmark

FP32 (float)

GeForce GTX 280

0.622 TFLOPS

GeForce GT 640 Rev. 2 +29%

0.803 TFLOPS

GeForce GTX 280

VS

GeForce GT 640 Rev. 2

Graphics Card

Jun 2008

Release Date

May 2013

GeForce 200

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

Base Clock

-

Boost Clock

-

1107 MHz

Memory Clock

1252 MHz

Memory

1024MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

64bit

141.7GB/s

Bandwidth

40.06GB/s

Render Config

30

SM Count

-

Compute Units

-

240

Shading Units

384

80

TMUs

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

Theoretical Performance

19.26 GPixel/s

Pixel Rate

8.368 GPixel/s

48.16 GTexel/s

Texture Rate

33.47 GTexel/s

-

FP16 (half)

-

622.1 GFLOPS

FP32 (float)

803.3 GFLOPS

77.76 GFLOPS

FP64 (double)

33.47 GFLOPS

Graphics Processor

GT200

GPU Name

GK208

G200-300-A2

GPU Variant

GK208-400-A1

Tesla 2.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

1.4 billion

Transistors

1.02 billion

576 mm²

Die Size

87 mm²

Board Design

236W

TDP

49W

550 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

1.3

CUDA

3.5

4.0

Shader Model

5.1

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