NVIDIA GeForce GTX 970 vs AMD Radeon HD 6870

VS

NVIDIA GeForce GTX 970

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 970 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 970 's Advantages

Released 3 years and 11 months late

Boost Clock1178MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (224.4GB/s vs 134.4GB/s)

544 additional rendering cores

Lower TDP (148W vs 151W)

Score

Benchmark

FP32 (float)

GeForce GTX 970 +94%

3.92 TFLOPS

Radeon HD 6870

2.016 TFLOPS

GeForce GTX 970

VS

Radeon HD 6870

Graphics Card

Sep 2014

Release Date

Oct 2010

GeForce 900

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1050 MHz

Base Clock

-

1178 MHz

Boost Clock

-

1753 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

224.4GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

-

1664

Shading Units

1120

104

TMUs

56

ROPs

32

-

48 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

65.97 GPixel/s

Pixel Rate

28.80 GPixel/s

122.5 GTexel/s

Texture Rate

50.40 GTexel/s

-

3.920 TFLOPS

FP32 (float)

2.016 TFLOPS

122.5 GFLOPS

FP64 (double)

-

Board Design

148W

TDP

151W

300 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GM204

GPU Name

Barts

GM204-200-A1

GPU Variant

Barts XT (215-0798000)

Maxwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5.2 billion

Transistors

1.7 billion

398 mm²

Die Size

255 mm²

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.2

CUDA

-

6.4

Shader Model

5.0

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