AMD Radeon HD 7850 vs NVIDIA GeForce 8400 GS PCI

VS

AMD Radeon HD 7850

NVIDIA GeForce 8400 GS PCI

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 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 7850 's Advantages

Released 4 years and 3 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 5.328GB/s)

1016 additional rendering cores

NVIDIA GeForce 8400 GS PCI 's Advantages

Lower TDP (25W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850 +7904%

1.761 TFLOPS

GeForce 8400 GS PCI

0.022 TFLOPS

Radeon HD 7850

VS

GeForce 8400 GS PCI

Graphics Card

Mar 2012

Release Date

Dec 2007

Southern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCI

Clock Speeds

-

1200 MHz

Memory Clock

333 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

5.328GB/s

Render Config

16

Compute Units

-

SM Count

1

1024

Shading Units

8

64

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 KB

-

Theoretical Performance

27.52 GPixel/s

Pixel Rate

2.268 GPixel/s

55.04 GTexel/s

Texture Rate

2.268 GTexel/s

-

1.761 TFLOPS

FP32 (float)

22.40 GFLOPS

110.1 GFLOPS

FP64 (double)

-

Board Design

130W

TDP

25W

300 W

Suggested PSU

200 W

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

Outputs

1x S-Video 1x DMS-59

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

G98

Pitcairn PRO (215-0828062)

GPU Variant

G98-400-U2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

2.8 billion

Transistors

0.21 billion

212 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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