AMD Radeon R9 270 vs NVIDIA GeForce 8400

VS

AMD Radeon R9 270

NVIDIA GeForce 8400

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 and 256MB VRAM GeForce 8400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 's Advantages

Released 5 years and 11 months late

Boost Clock925MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (179.2GB/s vs 8.000GB/s)

1272 additional rendering cores

NVIDIA GeForce 8400 's Advantages

Lower TDP (25W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 +11176%

2.368 TFLOPS

GeForce 8400

0.021 TFLOPS

Radeon R9 270

VS

GeForce 8400

Graphics Card

Nov 2013

Release Date

Dec 2007

Volcanic Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

179.2GB/s

Bandwidth

8.000GB/s

Render Config

20

Compute Units

-

SM Count

1

1280

Shading Units

8

80

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.160 GPixel/s

74.00 GTexel/s

Texture Rate

2.160 GTexel/s

-

2.368 TFLOPS

FP32 (float)

20.80 GFLOPS

148.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

25W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

G98

Curacao PRO (215-0848000)

GPU Variant

-

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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