NVIDIA GeForce 9400 GT vs AMD Radeon HD 7870 XT

VS

NVIDIA GeForce 9400 GT

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 128MB VRAM GeForce 9400 GT and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT 's Advantages

Lower TDP (50W vs 185W)

AMD Radeon HD 7870 XT 's Advantages

Released 4 years and 3 months late

Boost Clock975MHz

More VRAM (2GB vs 128GB)

Larger VRAM bandwidth (192.0GB/s vs 9.600GB/s)

1520 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT

0.029 TFLOPS

Radeon HD 7870 XT +10227%

2.995 TFLOPS

GeForce 9400 GT

VS

Radeon HD 7870 XT

Graphics Card

Aug 2008

Release Date

Nov 2012

GeForce 9

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

600 MHz

Memory Clock

1500 MHz

Memory

128MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

9.600GB/s

Bandwidth

192.0GB/s

Render Config

-

Compute Units

24

2

SM Count

-

16

Shading Units

1536

8

TMUs

96

4

ROPs

32

-

L1 Cache

16 KB (per CU)

16 KB

L2 Cache

512 KB

-

Theoretical Performance

1.836 GPixel/s

Pixel Rate

31.20 GPixel/s

3.672 GTexel/s

Texture Rate

93.60 GTexel/s

-

29.38 GFLOPS

FP32 (float)

2.995 TFLOPS

-

FP64 (double)

748.8 GFLOPS

Board Design

50W

TDP

185W

250 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

G86

GPU Name

Tahiti

-

GPU Variant

Tahiti LE (215-0821122)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.21 billion

Transistors

4.313 billion

127 mm²

Die Size

352 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

5.1

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