AMD Radeon HD 8970 OEM vs NVIDIA GeForce 8400 GS PCI Rev. 2

VS

AMD Radeon HD 8970 OEM

NVIDIA GeForce 8400 GS PCI Rev. 2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8970 OEM and 512MB VRAM GeForce 8400 GS PCI Rev. 2 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 512GB)

Larger VRAM bandwidth (264.0GB/s vs 8.000GB/s)

2032 additional rendering cores

NVIDIA GeForce 8400 GS PCI Rev. 2 's Advantages

Lower TDP (40W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 8970 OEM +9615%

3.789 TFLOPS

GeForce 8400 GS PCI Rev. 2

0.039 TFLOPS

Radeon HD 8970 OEM

VS

GeForce 8400 GS PCI Rev. 2

Graphics Card

Jan 2013

Release Date

Apr 2007

Sea Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCI

Clock Speeds

-

1375 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

8.000GB/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

32 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.080 GPixel/s

118.4 GTexel/s

Texture Rate

4.160 GTexel/s

-

3.789 TFLOPS

FP32 (float)

39.36 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 HDMI 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GT218

Tahiti XT (215-0821060)

GPU Variant

-

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.26 billion

352 mm²

Die Size

57 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.2

5.1

Shader Model

4.1

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