AMD Radeon HD 8950 OEM vs NVIDIA GeForce 8400 GS PCI

VS

AMD Radeon HD 8950 OEM

NVIDIA GeForce 8400 GS PCI

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8950 OEM and 512MB VRAM GeForce 8400 GS PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8950 OEM 's Advantages

Released 5 years and 1 months late

Boost Clock925MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 5.328GB/s)

1784 additional rendering cores

NVIDIA GeForce 8400 GS PCI 's Advantages

Lower TDP (25W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 8950 OEM +14968%

3.315 TFLOPS

GeForce 8400 GS PCI

0.022 TFLOPS

Radeon HD 8950 OEM

VS

GeForce 8400 GS PCI

Graphics Card

Jan 2013

Release Date

Dec 2007

Sea Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCI

Clock Speeds

850 MHz

Base Clock

-

925 MHz

Boost Clock

-

1250 MHz

Memory Clock

333 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

5.328GB/s

Render Config

28

Compute Units

-

SM Count

1

1792

Shading Units

8

112

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

16 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.268 GPixel/s

103.6 GTexel/s

Texture Rate

2.268 GTexel/s

-

3.315 TFLOPS

FP32 (float)

22.40 GFLOPS

828.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

25W

550 W

Suggested PSU

200 W

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

Outputs

1x S-Video 1x DMS-59

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

G98

Tahiti PRO (215-0821056)

GPU Variant

G98-400-U2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

4.313 billion

Transistors

0.21 billion

352 mm²

Die Size

86 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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