GPU Comparison

A

AMD

RADEON

AMD Radeon 550X 640SP

CORE STATE Lexa

VRAM 4 GB

CLOCK SPEED 1071 MHz

TDP 50 W

BUS WIDTH 64 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2018

VS

NVIDIA

GEFORCE

GeForce GTX 1660 Ti

CORE STATE TU116

VRAM 6 GB

CLOCK SPEED 1770 MHz

TDP 120 W

BUS WIDTH 192 bit

ARCHITECTURE Turing

nm

PROCESS 12 nm

LAUNCH DATE 2019

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

N/A

1,061

geekbench_opencl

N/A

60,863

geekbench_vulkan

N/A

58,014

passmark_directx_10

N/A

66

passmark_directx_11

N/A

103

passmark_directx_12

N/A

51

passmark_directx_9

N/A

190

passmark_g2d

N/A

804

passmark_g3d

N/A

12,871

passmark_gpu_compute

N/A

5,226

DETAILED SPECIFICATIONS

SPECIFICATION

550X 640SP

GTX 1660 Ti

Core Specs

Shading Units

640

1,536 +140.0%

Shaders

640

1,536 +140.0%

TMUs

40

96 +140.0%

ROPs

16

48 +200.0%

Compute Units

10

—

SM Count

—

24

Clocks

Base Clock

1019 MHz

1500 MHz

Boost Clock

1071 MHz

1770 MHz

Memory Clock

1500 MHz 6 Gbps effective

1500 MHz 12 Gbps effective

Memory

Memory Size

4 GB

6 GB

VRAM (MB)

4,096

6,144 +50.0%

Memory Type

GDDR5

GDDR6

Memory Bus

64 bit

192 bit

Bandwidth

48.00 GB/s

288.0 GB/s

Cache

L1 Cache

16 KB (per CU)

64 KB (per SM)

L2 Cache

256 KB

1536 KB

Performance

Pixel Rate

17.14 GPixel/s

84.96 GPixel/s

Texture Rate

42.84 GTexel/s

169.9 GTexel/s

FP32 (TFLOPS)

1,370.9 GFLOPS

5.437 TFLOPS

FP64 (TFLOPS)

85.68 GFLOPS (1:16)

169.9 GFLOPS (1:32)

FP16 (TFLOPS)

1,370.9 GFLOPS (1:1)

10.87 TFLOPS (2:1)

Power

TDP

50 W

120 W

TDP (W)

50

120 +140.0%

Suggested PSU

250 W

300 W

Power Connectors

None

1x 8-pin

Architecture

Architecture

GCN 4.0

Turing

GPU Name

Lexa

TU116

Generation

Polaris (RX 500X)

GeForce 16

Process Size

14 nm

12 nm

Transistors

2,200 million

6,600 million

Die Size

103 mm²

284 mm²

Foundry

GlobalFoundries

TSMC

Density

21.4M / mm²

23.2M / mm²

API Support

DirectX

12 (12_0)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.3

1.4

OpenCL

2.1

3.0

CUDA

—

7.5

Shader Model

6.7

6.8

Physical

Slot Width

IGP

Dual-slot

Length

—

229 mm 9 inches

Height

—

111 mm 4.4 inches

Outputs

1x DVI1x HDMI 2.0b1x DisplayPort 1.4a

1x DVI1x HDMI 2.01x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x8

PCIe 3.0 x16

Other

Launch Price

—

279 USD

Production

End-of-life

End-of-life

Predecessor

Polaris

GeForce 10

Successor

Vega

GeForce 20

View Radeon 550X 640SP Details View GeForce GTX 1660 Ti Details