NVIDIA GeForce GTX 770 vs AMD Radeon HD 6870

VS

NVIDIA GeForce GTX 770

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 770 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 770 's Advantages

Released 2 years and 7 months late

Boost Clock1085MHz

More VRAM (2GB vs 1024GB)

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

416 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 230W)

Score

Benchmark

FP32 (float)

GeForce GTX 770 +65%

3.333 TFLOPS

Radeon HD 6870

2.016 TFLOPS

GeForce GTX 770

VS

Radeon HD 6870

Graphics Card

May 2013

Release Date

Oct 2010

GeForce 700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1046 MHz

Base Clock

-

1085 MHz

Boost Clock

-

1753 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

224.4GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

-

1536

Shading Units

1120

128

TMUs

56

32

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

34.72 GPixel/s

Pixel Rate

28.80 GPixel/s

138.9 GTexel/s

Texture Rate

50.40 GTexel/s

-

3.333 TFLOPS

FP32 (float)

2.016 TFLOPS

138.9 GFLOPS

FP64 (double)

-

Board Design

230W

TDP

151W

550 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GK104

GPU Name

Barts

GK104-425-A2

GPU Variant

Barts XT (215-0798000)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

1.7 billion

294 mm²

Die Size

255 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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