NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 550 512SP

VS

NVIDIA GeForce GT 645 OEM

AMD Radeon RX 550 512SP

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 2GB VRAM Radeon RX 550 512SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 512SP 's Advantages

Released 5 years and 6 months late

Boost Clock1071MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 91.87GB/s)

224 additional rendering cores

Lower TDP (50W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Radeon RX 550 512SP +22%

1.097 TFLOPS

GeForce GT 645 OEM

VS

Radeon RX 550 512SP

Graphics Card

Apr 2012

Release Date

Oct 2017

GeForce 600

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

957 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

96.00GB/s

Render Config

-

Compute Units

8

6

SM Count

-

288

Shading Units

512

48

TMUs

32

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

17.14 GPixel/s

37.25 GTexel/s

Texture Rate

34.27 GTexel/s

-

FP16 (half)

1097 GFLOPS

894.0 GFLOPS

FP32 (float)

1097 GFLOPS

74.50 GFLOPS

FP64 (double)

68.54 GFLOPS

Board Design

102W

TDP

50W

300 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

Baffin

-

GPU Variant

Baffin LE

Fermi 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.95 billion

Transistors

3 billion

332 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.4

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