AMD Radeon HD 6870 vs NVIDIA GeForce GTX 970 Which One is Better

Graphics Card

Release Date

Oct 2010

Sep 2014

Generation

Northern Islands

GeForce 900

Type

Desktop

Bus Interface

PCIe 2.0 x16

PCIe 3.0 x16

Clock Speeds

Memory Clock

1050 MHz

1753 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1178 MHz

Memory

Memory Size

1024MB

4GB

Memory Type

GDDR5

Memory Bus

256bit

Bandwidth

134.4GB/s

224.4GB/s

Render Config

Compute Units

14

-

Shading Units

1120

1664

TMUs

56

104

ROPs

32

56

L1 Cache

8 KB (per CU)

48 KB (per SMM)

L2 Cache

512 KB

2 MB

Theoretical Performance

Pixel Rate

28.80 GPixel/s

65.97 GPixel/s

Texture Rate

50.40 GTexel/s

122.5 GTexel/s

FP32 (float)

2.016 TFLOPS

3.920 TFLOPS

FP64 (double)

-

122.5 GFLOPS

Graphics Processor

GPU Name

Barts

GM204

GPU Variant

Barts XT(215-0798000)

GM204-200-A1

Architecture

TeraScale 2

Maxwell 2.0

Foundry

TSMC

Process Size

40 nm

28 nm

Transistors

1.7 billion

5.2 billion

Die Size

255 mm²

398 mm²

Board Design

TDP

151W

148W

Suggested PSU

450 W

300 W

Outputs

2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1

1x DVI1x HDMI 2.03x DisplayPort 1.4a

Power Connectors

2x 6-pin

Graphics Features

DirectX

11.2 (11_0)

12 (12_1)

OpenGL

4.4

4.6

OpenCL

1.2

3.0

Vulkan

N/A

1.3

Shader Model

5.0

6.4

CUDA

-

5.2

📊 Benchmark

3DMark Time Spy

-

3,646

3DMark Time Spy Extreme

-

1,683

OctaneBench

-

77

Shadow of the Tomb Raider 2160p

-

15

Shadow of the Tomb Raider 1440p

-

30

Shadow of the Tomb Raider 1080p

-

40

Blender

-

305