AMD Radeon 550X 640SP vs NVIDIA GeForce GTX 650 Ti Boost

VS

AMD Radeon 550X 640SP

NVIDIA GeForce GTX 650 Ti Boost

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 2GB VRAM GeForce GTX 650 Ti Boost 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 1 months late

Boost Clock has increased by 4% (1071MHz vs 1032MHz)

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 134W)

NVIDIA GeForce GTX 650 Ti Boost 's Advantages

Larger VRAM bandwidth (144.2GB/s vs 48.00GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

GeForce GTX 650 Ti Boost +15%

1.585 TFLOPS

Radeon 550X 640SP

VS

GeForce GTX 650 Ti Boost

Graphics Card

Apr 2018

Release Date

Mar 2013

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

980 MHz

1071 MHz

Boost Clock

1032 MHz

1500 MHz

Memory Clock

1502 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

192bit

48.00GB/s

Bandwidth

144.2GB/s

Render Config

10

Compute Units

-

640

Shading Units

768

40

TMUs

64

16

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

16.51 GPixel/s

42.84 GTexel/s

Texture Rate

66.05 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

1.585 TFLOPS

85.68 GFLOPS

FP64 (double)

66.05 GFLOPS

Board Design

50W

TDP

134W

250 W

Suggested PSU

300 W

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

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

GK106

Lexa PRO (215-0904018)

GPU Variant

GK106-240-A1

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

2.54 billion

103 mm²

Die Size

221 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.4

Shader Model

5.1

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