AMD Radeon R9 380 OEM vs NVIDIA GeForce GT 640 Rev. 2

VS

AMD Radeon R9 380 OEM NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380 OEM 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

AMD Radeon R9 380 OEM 's Advantages

Released 2 years late

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (176.0GB/s vs 40.06GB/s)

1408 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380 OEM +309%

3.29 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

Radeon R9 380 OEM

VS

GeForce GT 640 Rev. 2

Graphics Card

May 2015

Release Date

May 2013

Pirate Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

1252 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

176.0GB/s

Bandwidth

40.06GB/s

Render Config

-

SM Count

-

28

Compute Units

-

1792

Shading Units

384

112

TMUs

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

Theoretical Performance

29.38 GPixel/s

Pixel Rate

8.368 GPixel/s

102.8 GTexel/s

Texture Rate

33.47 GTexel/s

3.290 TFLOPS

FP16 (half)

-

3.290 TFLOPS

FP32 (float)

803.3 GFLOPS

205.6 GFLOPS

FP64 (double)

33.47 GFLOPS

Graphics Processor

Antigua

GPU Name

GK208

Antigua PRO (215-0877000)

GPU Variant

GK208-400-A1

GCN 3.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

1.02 billion

366 mm²

Die Size

87 mm²

Board Design

190W

TDP

49W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

6.3

Shader Model

5.1

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