NVIDIA GeForce GTX 770 vs AMD Radeon HD 6870 1600SP Edition

VS

NVIDIA GeForce GTX 770

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 770 and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 770 's Advantages

Boost Clock1085MHz

More VRAM (2GB vs 1024GB)

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

AMD Radeon HD 6870 1600SP Edition 's Advantages

64 additional rendering cores

Lower TDP (175W vs 230W)

Score

Benchmark

FP32 (float)

GeForce GTX 770 +22%

3.333 TFLOPS

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

GeForce GTX 770

VS

Radeon HD 6870 1600SP Edition

Graphics Card

May 2013

Release Date

Jan 2013

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

20

-

1536

Shading Units

1600

128

TMUs

80

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

27.20 GPixel/s

138.9 GTexel/s

Texture Rate

68.00 GTexel/s

-

3.333 TFLOPS

FP32 (float)

2.720 TFLOPS

138.9 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

230W

TDP

175W

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

Cypress

GK104-425-A2

GPU Variant

Cypress XT (215-0735033)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

2.154 billion

294 mm²

Die Size

334 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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