NVIDIA GeForce 8800 GT Mac Edition vs AMD Radeon R9 390 X2

VS

NVIDIA GeForce 8800 GT Mac Edition

AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8800 GT Mac Edition and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 GT Mac Edition 's Advantages

Lower TDP (125W vs 580W)

AMD Radeon R9 390 X2 's Advantages

Released 7 years and 7 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (345.6GB/s vs 57.60GB/s)

2448 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8800 GT Mac Edition

0.336 TFLOPS

Radeon R9 390 X2 +1423%

5.12 TFLOPS

GeForce 8800 GT Mac Edition

VS

Radeon R9 390 X2

Graphics Card

Feb 2008

Release Date

Sep 2015

GeForce 8

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1350 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

512bit

57.60GB/s

Bandwidth

345.6GB/s

Render Config

-

Compute Units

40

14

SM Count

-

112

Shading Units

2560

56

TMUs

160

16

ROPs

64

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

1024 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

64.00 GPixel/s

33.60 GTexel/s

Texture Rate

160.0 GTexel/s

-

336.0 GFLOPS

FP32 (float)

5.120 TFLOPS

-

FP64 (double)

640.0 GFLOPS

Board Design

125W

TDP

580W

300 W

Suggested PSU

950 W

2x DVI

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

4x 8-pin

Graphics Processor

G92

GPU Name

Grenada

G92-270-A2

GPU Variant

Grenada PRO (215-0880030)

Tesla

Architecture

GCN 2.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.754 billion

Transistors

6.2 billion

324 mm²

Die Size

438 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

6.3

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