AMD Radeon HD 8970 OEM vs NVIDIA GeForce 8400 GS

VS

AMD Radeon HD 8970 OEM

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8970 OEM and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970 OEM 's Advantages

Released 5 years and 9 months late

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (264.0GB/s vs 6.400GB/s)

2032 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 8970 OEM +12965%

3.789 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

Radeon HD 8970 OEM

VS

GeForce 8400 GS

Graphics Card

Jan 2013

Release Date

Apr 2007

Sea Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

400 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

6.400GB/s

Render Config

32

Compute Units

-

SM Count

2

2048

Shading Units

16

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

16 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

1.836 GPixel/s

118.4 GTexel/s

Texture Rate

3.672 GTexel/s

-

3.789 TFLOPS

FP32 (float)

29.38 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

40W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

G86

Tahiti XT (215-0821060)

GPU Variant

G86-213-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

4.313 billion

Transistors

0.21 billion

352 mm²

Die Size

127 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

5.1

Shader Model

4.0

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