GPU Comparison

A

AMD

RADEON

AMD Radeon HD 6870

CORE STATE Barts

VRAM 1024 MB

CLOCK SPEED —

TDP 151 W

BUS WIDTH 256 bit

ARCHITECTURE TeraScale 2

nm

PROCESS 40 nm

LAUNCH DATE 2010

VS

NVIDIA

GEFORCE

GeForce GTX 1660 Ti Mobile

CORE STATE TU116

VRAM 6 GB

CLOCK SPEED 1590 MHz

TDP —

BUS WIDTH 192 bit

ARCHITECTURE Turing

nm

PROCESS 12 nm

LAUNCH DATE 2019

PERFORMANCE BENCHMARKS

passmark_directx_10

15

N/A

passmark_directx_11

16

N/A

passmark_directx_12

N/A

N/A

passmark_directx_9

53

N/A

passmark_g2d

418

N/A

passmark_g3d

2,205

N/A

passmark_gpu_compute

1,042

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

HD 6870

GTX 1660 Ti Mobile

Core Specs

Shading Units

1,120

1,536 +37.1%

Shaders

1,120

1,536 +37.1%

TMUs

56

96 +71.4%

ROPs

32

48 +50.0%

Compute Units

14

—

SM Count

—

24

Clocks

Base Clock

—

1455 MHz

Boost Clock

—

1590 MHz

GPU Clock

900 MHz

—

Memory Clock

1050 MHz 4.2 Gbps effective

1500 MHz 12 Gbps effective

Memory

Memory Size

1024 MB

6 GB

VRAM (MB)

1,024

6,144 +500.0%

Memory Type

GDDR5

GDDR6

Memory Bus

256 bit

192 bit

Bandwidth

134.4 GB/s

288.0 GB/s

Cache

L1 Cache

8 KB (per CU)

64 KB (per SM)

L2 Cache

512 KB

1536 KB

Performance

Pixel Rate

28.80 GPixel/s

76.32 GPixel/s

Texture Rate

50.40 GTexel/s

152.6 GTexel/s

FP32 (TFLOPS)

2.016 TFLOPS

4.884 TFLOPS

FP64 (TFLOPS)

—

152.6 GFLOPS (1:32)

FP16 (TFLOPS)

—

9.769 TFLOPS (2:1)

Power

TDP

151 W

—

TDP (W)

151

—

Suggested PSU

450 W

—

Power Connectors

2x 6-pin

None

Architecture

Architecture

TeraScale 2

Turing

GPU Name

Barts

TU116

Generation

Northern Islands (HD 6800)

GeForce 16 Mobile

Process Size

40 nm

12 nm

Transistors

1,700 million

6,600 million

Die Size

255 mm²

284 mm²

Foundry

TSMC

TSMC

Density

6.7M / mm²

23.2M / mm²

API Support

DirectX

11.2 (11_0)

12 (12_1)

OpenGL

4.4

4.6

Vulkan

—

1.4

OpenCL

1.2

3.0

CUDA

—

7.5

Shader Model

5.0

6.8

Physical

Slot Width

Dual-slot

MXM Module

Length

247 mm 9.7 inches

—

Height

111 mm 4.4 inches

—

Outputs

2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1

Portable Device Dependent

Bus Interface

PCIe 2.0 x16

PCIe 3.0 x16

Other

Launch Price

239 USD

—

Production

End-of-life

End-of-life

Predecessor

Evergreen

GeForce 10 Mobile

Successor

Southern Islands

GeForce 20 Mobile

View Radeon HD 6870 Details View GeForce GTX 1660 Ti Mobile Details