AMD Radeon R9 390 X2 vs NVIDIA GeForce 8800 Ultra

VS

AMD Radeon R9 390 X2 NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 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 R9 390 X2 's Advantages

Released 8 years and 4 months late

Larger VRAM bandwidth (345.6GB/s vs 103.7GB/s)

2432 additional rendering cores

NVIDIA GeForce 8800 Ultra 's Advantages

Lower TDP (171W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +1222%

5.12 TFLOPS

GeForce 8800 Ultra

0.387 TFLOPS

Radeon R9 390 X2

VS

GeForce 8800 Ultra

Graphics Card

Sep 2015

Release Date

May 2007

Pirate Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1350 MHz

Memory Clock

1080 MHz

Memory

8GB

Memory Size

768MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

384bit

345.6GB/s

Bandwidth

103.7GB/s

Render Config

-

SM Count

16

40

Compute Units

-

2560

Shading Units

128

160

TMUs

32

64

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

96 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

14.69 GPixel/s

160.0 GTexel/s

Texture Rate

39.17 GTexel/s

-

FP16 (half)

-

5.120 TFLOPS

FP32 (float)

387.1 GFLOPS

640.0 GFLOPS

FP64 (double)

-

Graphics Processor

Grenada

GPU Name

G80

Grenada PRO (215-0880030)

GPU Variant

G80-450-A3

GCN 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

6.2 billion

Transistors

0.681 billion

438 mm²

Die Size

484 mm²

Board Design

580W

TDP

171W

950 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

4x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1 (1.0)

1.2

Vulkan

N/A

-

CUDA

1.0

6.3

Shader Model

4.0

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