AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 670

VS

AMD Radeon HD 6870 X2 NVIDIA GeForce GTX 670

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 2GB VRAM GeForce GTX 670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 670 's Advantages

Released 10 months late

Boost Clock980MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (192.3GB/s vs 134.4GB/s)

224 additional rendering cores

Lower TDP (170W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

GeForce GTX 670 +30%

2.634 TFLOPS

Radeon HD 6870 X2

VS

GeForce GTX 670

Graphics Card

Jul 2011

Release Date

May 2012

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

915 MHz

-

Boost Clock

980 MHz

1050 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

192.3GB/s

Render Config

-

SM Count

-

14

Compute Units

-

1120

Shading Units

1344

56

TMUs

112

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

27.44 GPixel/s

50.40 GTexel/s

Texture Rate

109.8 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

2.634 TFLOPS

-

FP64 (double)

109.8 GFLOPS

Graphics Processor

Barts

GPU Name

GK104

Barts XT (215-0798000)

GPU Variant

GK104-325-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

3.54 billion

255 mm²

Die Size

294 mm²

Board Design

300W

TDP

170W

700 W

Suggested PSU

450 W

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

Outputs

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

-

Power Connectors

2x 6-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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