AMD Radeon R9 390 vs NVIDIA GeForce 8600 GT Mac Edition

VS

AMD Radeon R9 390

NVIDIA GeForce 8600 GT Mac Edition

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 and 128MB VRAM GeForce 8600 GT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 's Advantages

Released 8 years and 2 months late

More VRAM (8GB vs 128GB)

Larger VRAM bandwidth (384.0GB/s vs 24.00GB/s)

2528 additional rendering cores

NVIDIA GeForce 8600 GT Mac Edition 's Advantages

Lower TDP (47W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390 +5405%

5.12 TFLOPS

GeForce 8600 GT Mac Edition

0.093 TFLOPS

Radeon R9 390

VS

GeForce 8600 GT Mac Edition

Graphics Card

Jun 2015

Release Date

Apr 2007

Pirate Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

750 MHz

Memory

8GB

Memory Size

128MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

24.00GB/s

Render Config

40

Compute Units

-

SM Count

4

2560

Shading Units

32

160

TMUs

16

64

ROPs

8

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

32 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

4.800 GPixel/s

160.0 GTexel/s

Texture Rate

9.600 GTexel/s

-

5.120 TFLOPS

FP32 (float)

92.80 GFLOPS

640.0 GFLOPS

FP64 (double)

-

Board Design

275W

TDP

47W

600 W

Suggested PSU

200 W

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

Outputs

2x DVI

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

G84

Grenada PRO (215-0880030)

GPU Variant

G84-303-A2

GCN 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

6.2 billion

Transistors

0.289 billion

438 mm²

Die Size

169 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.3

Shader Model

4.0

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