NVIDIA GeForce GTX 660 Ti vs AMD Radeon RX Vega 64

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon RX Vega 64

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 8GB VRAM Radeon RX Vega 64 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 295W)

AMD Radeon RX Vega 64 's Advantages

Released 5 years late

Boost Clock has increased by 58% (1546MHz vs 980MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (483.8GB/s vs 144.2GB/s)

2752 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti

2.634 TFLOPS

Radeon RX Vega 64 +380%

12.66 TFLOPS

3DMark Time Spy

GeForce GTX 660 Ti

1627

Radeon RX Vega 64 +362%

7522

Blender

GeForce GTX 660 Ti

146

Radeon RX Vega 64 +352%

660

GeForce GTX 660 Ti

VS

Radeon RX Vega 64

Graphics Card

Aug 2012

Release Date

Aug 2017

GeForce 600

Generation

Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

1247 MHz

980 MHz

Boost Clock

1546 MHz

1502 MHz

Memory Clock

945 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

HBM2

192bit

Memory Bus

2048bit

144.2GB/s

Bandwidth

483.8GB/s

Render Config

-

Compute Units

64

-

1344

Shading Units

4096

112

TMUs

256

24

ROPs

64

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

4 MB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

98.94 GPixel/s

109.8 GTexel/s

Texture Rate

395.8 GTexel/s

-

FP16 (half)

25.33 TFLOPS

2.634 TFLOPS

FP32 (float)

12.66 TFLOPS

109.8 GFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

150W

TDP

295W

450 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK104

GPU Name

Vega 10

GK104-300-KD-A2

GPU Variant

Vega 10 XT (215-0894200)

Kepler

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

3.54 billion

Transistors

12.5 billion

294 mm²

Die Size

495 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.4

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