AMD Radeon HD 6770 vs NVIDIA GeForce GTX 480

VS

AMD Radeon HD 6770

NVIDIA GeForce GTX 480

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 1536MB VRAM GeForce GTX 480 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

Released 10 months late

320 additional rendering cores

Lower TDP (108W vs 250W)

NVIDIA GeForce GTX 480 's Advantages

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (177.4GB/s vs 76.80GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6770 +1%

1.36 TFLOPS

GeForce GTX 480

1.345 TFLOPS

Radeon HD 6770

VS

GeForce GTX 480

Graphics Card

Jan 2011

Release Date

Mar 2010

Northern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

924 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

76.80GB/s

Bandwidth

177.4GB/s

Render Config

10

Compute Units

-

SM Count

15

800

Shading Units

480

40

TMUs

60

16

ROPs

48

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

21.03 GPixel/s

34.00 GTexel/s

Texture Rate

42.06 GTexel/s

-

1360 GFLOPS

FP32 (float)

1345 GFLOPS

-

FP64 (double)

168.1 GFLOPS

Board Design

108W

TDP

250W

300 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Juniper

GPU Name

GF100

Juniper XT (215-0754013)

GPU Variant

GF100-375-A3

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

3.1 billion

166 mm²

Die Size

529 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.0

5.0

Shader Model

5.1

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