ATI Radeon HD 4890 vs NVIDIA GeForce 8400 SE

VS

ATI Radeon HD 4890

NVIDIA GeForce 8400 SE

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 128MB VRAM GeForce 8400 SE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4890 's Advantages

Released 8 months late

More VRAM (1024GB vs 128GB)

Larger VRAM bandwidth (124.8GB/s vs 6.400GB/s)

784 additional rendering cores

NVIDIA GeForce 8400 SE 's Advantages

Lower TDP (50W vs 190W)

Score

Benchmark

FP32 (float)

Radeon HD 4890 +4589%

1.36 TFLOPS

GeForce 8400 SE

0.029 TFLOPS

Radeon HD 4890

VS

GeForce 8400 SE

Graphics Card

Apr 2009

Release Date

Aug 2008

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

975 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

128MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

124.8GB/s

Bandwidth

6.400GB/s

Render Config

10

Compute Units

-

SM Count

2

800

Shading Units

16

40

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

16 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

1.836 GPixel/s

34.00 GTexel/s

Texture Rate

3.672 GTexel/s

-

1360 GFLOPS

FP32 (float)

29.38 GFLOPS

272.0 GFLOPS

FP64 (double)

-

Board Design

190W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

RV790

GPU Name

G86S

RV790 XT (215-0758016)

GPU Variant

-

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.959 billion

Transistors

0.21 billion

282 mm²

Die Size

127 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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