AMD Radeon HD 6770 Green Edition vs ATI Radeon HD 2900 PRO

VS

AMD Radeon HD 6770 Green Edition ATI Radeon HD 2900 PRO

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6770 Green Edition and 512MB VRAM Radeon HD 2900 PRO 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 4 months late

400 additional rendering cores

Lower TDP (86W vs 200W)

ATI Radeon HD 2900 PRO 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 21.34GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6770 Green Edition +162%

1.008 TFLOPS

Radeon HD 2900 PRO

0.384 TFLOPS

Radeon HD 6770 Green Edition

VS

Radeon HD 2900 PRO

Graphics Card

Apr 2013

Release Date

Dec 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

667 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

21.34GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

9

Compute Units

4

720

Shading Units

320

36

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

128 KB

Theoretical Performance

11.20 GPixel/s

Pixel Rate

9.600 GPixel/s

25.20 GTexel/s

Texture Rate

9.600 GTexel/s

-

FP16 (half)

-

1008 GFLOPS

FP32 (float)

384.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Juniper

GPU Name

R600

Juniper LE (215-0754009)

GPU Variant

R600 PRO (215RGMDKA13FG)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.04 billion

Transistors

0.72 billion

166 mm²

Die Size

420 mm²

Board Design

86W

TDP

200W

250 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

1x 8-pin

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.0

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