AMD Radeon HD 6790 vs ATI Radeon HD 5770

VS

AMD Radeon HD 6790

ATI Radeon HD 5770

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 1024MB VRAM Radeon HD 5770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Released 1 years and 6 months late

Larger VRAM bandwidth (134.4GB/s vs 76.80GB/s)

ATI Radeon HD 5770 's Advantages

Lower TDP (108W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 6790

1.344 TFLOPS

Radeon HD 5770 +1%

1.36 TFLOPS

Radeon HD 6790

VS

Radeon HD 5770

Graphics Card

Apr 2011

Release Date

Oct 2009

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

76.80GB/s

Render Config

10

Compute Units

10

-

800

Shading Units

800

40

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

13.60 GPixel/s

33.60 GTexel/s

Texture Rate

34.00 GTexel/s

-

1344 GFLOPS

FP32 (float)

1360 GFLOPS

-

Board Design

150W

TDP

108W

450 W

Suggested PSU

300 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

Juniper

Barts LE (215-0798002)

GPU Variant

Juniper XT (215-0754013)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.04 billion

255 mm²

Die Size

166 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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