AMD Radeon HD 6770 Green Edition vs NVIDIA GeForce 8800 Ultra

VS

AMD Radeon HD 6770 Green Edition NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6770 Green Edition and 768MB VRAM GeForce 8800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 Green Edition 's Advantages

Released 5 years and 11 months late

592 additional rendering cores

Lower TDP (86W vs 171W)

NVIDIA GeForce 8800 Ultra 's Advantages

Larger VRAM bandwidth (103.7GB/s vs 21.34GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6770 Green Edition +160%

1.008 TFLOPS

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 6770 Green Edition

VS

GeForce 8800 Ultra

Graphics Card

Apr 2013

Release Date

May 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

667 MHz

Memory Clock

1080 MHz

Memory

2GB

Memory Size

768MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

384bit

21.34GB/s

Bandwidth

103.7GB/s

Render Config

-

SM Count

16

9

Compute Units

-

720

Shading Units

128

36

TMUs

32

16

ROPs

24

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

96 KB

Theoretical Performance

11.20 GPixel/s

Pixel Rate

14.69 GPixel/s

25.20 GTexel/s

Texture Rate

39.17 GTexel/s

-

FP16 (half)

-

1008 GFLOPS

FP32 (float)

387.1 GFLOPS

-

FP64 (double)

-

Graphics Processor

Juniper

GPU Name

G80

Juniper LE (215-0754009)

GPU Variant

G80-450-A3

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

90 nm

1.04 billion

Transistors

0.681 billion

166 mm²

Die Size

484 mm²

Board Design

86W

TDP

171W

250 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

2x 6-pin

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1 (1.0)

N/A

Vulkan

N/A

-

CUDA

1.0

5.0

Shader Model

4.0

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