AMD Radeon 550X 640SP vs NVIDIA GeForce GTS 450 Rev. 3

VS

AMD Radeon 550X 640SP

NVIDIA GeForce GTS 450 Rev. 3

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 1024MB VRAM GeForce GTS 450 Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Released 5 years and 9 months late

Boost Clock1071MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (48.00GB/s vs 22.40GB/s)

496 additional rendering cores

Lower TDP (50W vs 106W)

Score

Benchmark

FP32 (float)

Radeon 550X 640SP +203%

1.371 TFLOPS

GeForce GTS 450 Rev. 3

0.451 TFLOPS

Radeon 550X 640SP

VS

GeForce GTS 450 Rev. 3

Graphics Card

Apr 2018

Release Date

Jul 2012

Polaris

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

700 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

22.40GB/s

Render Config

10

Compute Units

-

SM Count

3

640

Shading Units

144

40

TMUs

24

16

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

4.698 GPixel/s

42.84 GTexel/s

Texture Rate

18.79 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

451.0 GFLOPS

85.68 GFLOPS

FP64 (double)

37.58 GFLOPS

Board Design

50W

TDP

106W

250 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

-

Graphics Processor

Lexa

GPU Name

GF116

Lexa PRO (215-0904018)

GPU Variant

GF116-200-KA-A1

GCN 4.0

Architecture

Fermi 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

1.17 billion

103 mm²

Die Size

238 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.4

Shader Model

5.1

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