AMD Radeon HD 6790 vs ATI Radeon X1600

VS

AMD Radeon HD 6790

ATI Radeon X1600

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 512MB VRAM Radeon X1600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Released 4 years and 3 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 12.80GB/s)

800 additional rendering cores

ATI Radeon X1600 's Advantages

Lower TDP (27W vs 150W)

Score

Radeon HD 6790

VS

Radeon X1600

Graphics Card

Apr 2011

Release Date

Jan 2007

Northern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

12.80GB/s

Render Config

10

Compute Units

-

800

Shading Units

-

40

TMUs

4

16

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

2.540 GPixel/s

33.60 GTexel/s

Texture Rate

2.540 GTexel/s

-

1344 GFLOPS

FP32 (float)

-

Board Design

150W

TDP

27W

450 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

RV516

Barts LE (215-0798002)

GPU Variant

-

TeraScale 2

Architecture

R500

TSMC

Foundry

UMC

40 nm

Process Size

80 nm

1.7 billion

Transistors

0.107 billion

255 mm²

Die Size

100 mm²

Graphics Features

11.2 (11_0)

DirectX

9.0c (9_3)

4.4

OpenGL

2.1

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

3.0

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