NVIDIA GeForce GTX 645 OEM vs AMD Radeon R9 380 OEM

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon R9 380 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 4GB VRAM Radeon R9 380 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 190W)

AMD Radeon R9 380 OEM 's Advantages

Released 2 years and 1 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 64.00GB/s)

1216 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon R9 380 OEM +246%

3.29 TFLOPS

GeForce GTX 645 OEM

VS

Radeon R9 380 OEM

Graphics Card

Apr 2013

Release Date

May 2015

GeForce 600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

176.0GB/s

Render Config

-

Compute Units

28

-

576

Shading Units

1792

48

TMUs

112

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

29.38 GPixel/s

39.55 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

949.2 GFLOPS

FP32 (float)

3.290 TFLOPS

39.55 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

65W

TDP

190W

250 W

Suggested PSU

450 W

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

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

GK106

GPU Name

Antigua

GK106-200-A1

GPU Variant

Antigua PRO (215-0877000)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

5 billion

221 mm²

Die Size

366 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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