AMD Radeon R9 380 OEM vs NVIDIA GeForce GT 645 OEM

VS

AMD Radeon R9 380 OEM

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380 OEM and 1024MB VRAM GeForce GT 645 OEM 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 3 years and 1 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 91.87GB/s)

1504 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380 OEM +268%

3.29 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

Radeon R9 380 OEM

VS

GeForce GT 645 OEM

Graphics Card

May 2015

Release Date

Apr 2012

Pirate Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

957 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

176.0GB/s

Bandwidth

91.87GB/s

Render Config

28

Compute Units

-

SM Count

6

1792

Shading Units

288

112

TMUs

48

32

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

29.38 GPixel/s

Pixel Rate

9.312 GPixel/s

102.8 GTexel/s

Texture Rate

37.25 GTexel/s

3.290 TFLOPS

FP16 (half)

-

3.290 TFLOPS

FP32 (float)

894.0 GFLOPS

205.6 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

190W

TDP

102W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

-

Graphics Processor

Antigua

GPU Name

GF114

Antigua PRO (215-0877000)

GPU Variant

-

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

1.95 billion

366 mm²

Die Size

332 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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