NVIDIA GeForce 8800 Ultra vs AMD Radeon HD 6770

VS

NVIDIA GeForce 8800 Ultra AMD Radeon HD 6770

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 1024MB VRAM Radeon HD 6770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 Ultra 's Advantages

Larger VRAM bandwidth (103.7GB/s vs 76.80GB/s)

AMD Radeon HD 6770 's Advantages

Released 3 years and 8 months late

More VRAM (1024GB vs 768GB)

672 additional rendering cores

Lower TDP (108W vs 171W)

Score

Benchmark

FP32 (float)

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 6770 +251%

1.36 TFLOPS

GeForce 8800 Ultra

VS

Radeon HD 6770

Graphics Card

May 2007

Release Date

Jan 2011

GeForce 8

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1080 MHz

Memory Clock

1200 MHz

Memory

768MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

384bit

Memory Bus

128bit

103.7GB/s

Bandwidth

76.80GB/s

Render Config

16

SM Count

-

Compute Units

10

128

Shading Units

800

32

TMUs

40

24

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

8 KB (per CU)

96 KB

L2 Cache

256 KB

Theoretical Performance

14.69 GPixel/s

Pixel Rate

13.60 GPixel/s

39.17 GTexel/s

Texture Rate

34.00 GTexel/s

-

FP16 (half)

-

387.1 GFLOPS

FP32 (float)

1360 GFLOPS

-

FP64 (double)

-

Graphics Processor

G80

GPU Name

Juniper

G80-450-A3

GPU Variant

Juniper XT (215-0754013)

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

90 nm

Process Size

40 nm

0.681 billion

Transistors

1.04 billion

484 mm²

Die Size

166 mm²

Board Design

171W

TDP

108W

450 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1 (1.0)

OpenCL

1.2

N/A

Vulkan

N/A

1.0

CUDA

-

4.0

Shader Model

5.0

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