AMD Radeon HD 6390 vs NVIDIA GeForce 8800 Ultra

VS

AMD Radeon HD 6390

NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 768MB VRAM GeForce 8800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Released 4 years and 2 months late

More VRAM (1024GB vs 768GB)

192 additional rendering cores

Lower TDP (39W vs 171W)

NVIDIA GeForce 8800 Ultra 's Advantages

Larger VRAM bandwidth (103.7GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

GeForce 8800 Ultra +9%

0.387 TFLOPS

Radeon HD 6390

VS

GeForce 8800 Ultra

Graphics Card

Jul 2011

Release Date

May 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1080 MHz

Memory

1024MB

Memory Size

768MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

384bit

16.00GB/s

Bandwidth

103.7GB/s

Render Config

4

Compute Units

-

SM Count

16

320

Shading Units

128

16

TMUs

32

8

ROPs

24

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

96 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

14.69 GPixel/s

8.800 GTexel/s

Texture Rate

39.17 GTexel/s

-

352.0 GFLOPS

FP32 (float)

387.1 GFLOPS

-

Board Design

39W

TDP

171W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x S-Video

None

Power Connectors

2x 6-pin

Graphics Processor

Redwood

GPU Name

G80

Redwood LE

GPU Variant

G80-450-A3

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

90 nm

0.627 billion

Transistors

0.681 billion

104 mm²

Die Size

484 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1 (1.0)

N/A

Vulkan

N/A

-

CUDA

1.0

5.0

Shader Model

4.0

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