AMD Radeon R9 295X2 vs NVIDIA GeForce 8400 GS

VS

AMD Radeon R9 295X2

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

Released 7 years late

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (320.0GB/s vs 6.400GB/s)

2800 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +19668%

5.733 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

Radeon R9 295X2

VS

GeForce 8400 GS

Graphics Card

Apr 2014

Release Date

Apr 2007

Volcanic Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

4GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

512bit

Memory Bus

64bit

320.0GB/s

Bandwidth

6.400GB/s

Render Config

44

Compute Units

-

SM Count

2

2816

Shading Units

16

176

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

16 KB

-

Theoretical Performance

65.15 GPixel/s

Pixel Rate

1.836 GPixel/s

179.2 GTexel/s

Texture Rate

3.672 GTexel/s

-

5.733 TFLOPS

FP32 (float)

29.38 GFLOPS

716.7 GFLOPS

FP64 (double)

-

Board Design

500W

TDP

40W

900 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Vesuvius

GPU Name

G86

Vesuvius XT (215-0852022)

GPU Variant

G86-213-A2

GCN 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

6.2 billion

Transistors

0.21 billion

438 mm²

Die Size

127 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.3

Shader Model

4.0

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