AMD Radeon HD 6390 vs NVIDIA GeForce 8800 GT Mac Edition

VS

AMD Radeon HD 6390

NVIDIA GeForce 8800 GT Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 512MB VRAM GeForce 8800 GT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Released 3 years and 5 months late

More VRAM (1024GB vs 512GB)

208 additional rendering cores

Lower TDP (39W vs 125W)

NVIDIA GeForce 8800 GT Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6390 +4%

0.352 TFLOPS

GeForce 8800 GT Mac Edition

0.336 TFLOPS

Radeon HD 6390

VS

GeForce 8800 GT Mac Edition

Graphics Card

Jul 2011

Release Date

Feb 2008

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

57.60GB/s

Render Config

4

Compute Units

-

SM Count

14

320

Shading Units

112

16

TMUs

56

8

ROPs

16

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

9.600 GPixel/s

8.800 GTexel/s

Texture Rate

33.60 GTexel/s

-

352.0 GFLOPS

FP32 (float)

336.0 GFLOPS

-

Board Design

39W

TDP

125W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI

None

Power Connectors

1x 6-pin

Graphics Processor

Redwood

GPU Name

G92

Redwood LE

GPU Variant

G92-270-A2

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

0.627 billion

Transistors

0.754 billion

104 mm²

Die Size

324 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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