GPU Comparison

A

AMD

RADEON

AMD Radeon HD 8870 OEM

CORE STATE Pitcairn

VRAM 2 GB

CLOCK SPEED —

TDP 175 W

BUS WIDTH 256 bit

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2013

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

HD 8870 OEM

GTX 1660 Ti

Core Specs

Shading Units

1,280

1,536 +20.0%

Shaders

1,280

1,536 +20.0%

TMUs

80

96 +20.0%

ROPs

32

48 +50.0%

Compute Units

20

—

SM Count

—

24

Clocks

Base Clock

—

1500 MHz

Boost Clock

—

1770 MHz

GPU Clock

1000 MHz

—

Memory Clock

1200 MHz 4.8 Gbps effective

1500 MHz 12 Gbps effective

Memory

Memory Size

2 GB

6 GB

VRAM (MB)

2,048

6,144 +200.0%

Memory Type

GDDR5

GDDR6

Memory Bus

256 bit

192 bit

Bandwidth

153.6 GB/s

288.0 GB/s

Cache

L1 Cache

16 KB (per CU)

64 KB (per SM)

L2 Cache

512 KB

1536 KB

Performance

Pixel Rate

32.00 GPixel/s

84.96 GPixel/s

Texture Rate

80.00 GTexel/s

169.9 GTexel/s

FP32 (TFLOPS)

2.560 TFLOPS

5.437 TFLOPS

FP64 (TFLOPS)

160.0 GFLOPS (1:16)

169.9 GFLOPS (1:32)

FP16 (TFLOPS)

—

10.87 TFLOPS (2:1)

Power

TDP

175 W

120 W

TDP (W)

175

120 -31.4%

Suggested PSU

450 W

300 W

Power Connectors

2x 6-pin

1x 8-pin

Architecture

Architecture

GCN 1.0

Turing

GPU Name

Pitcairn

TU116

Generation

Sea Islands (HD 8800)

GeForce 16

Process Size

28 nm

12 nm

Transistors

2,800 million

6,600 million

Die Size

212 mm²

284 mm²

Foundry

TSMC

TSMC

Density

13.2M / mm²

23.2M / mm²

API Support

DirectX

12 (11_1)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1 (1.2)

3.0

CUDA

—

7.5

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

241 mm 9.5 inches

229 mm 9 inches

Height

—

111 mm 4.4 inches

Outputs

1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2

1x DVI1x HDMI 2.01x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x16

PCIe 3.0 x16

Other

Launch Price

—

279 USD

Production

End-of-life

End-of-life

Predecessor

Southern Islands

GeForce 10

Successor

Volcanic Islands

GeForce 20

View Radeon HD 8870 OEM Details View GeForce GTX 1660 Ti Details