ATI Radeon HD 2900 XTX vs NVIDIA GeForce 8400 GS Rev. 3

VS

ATI Radeon HD 2900 XTX NVIDIA GeForce 8400 GS Rev. 3

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 512MB VRAM GeForce 8400 GS Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 6.400GB/s)

312 additional rendering cores

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

Lower TDP (25W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX +2280%

0.476 TFLOPS

GeForce 8400 GS Rev. 3

0.02 TFLOPS

Radeon HD 2900 XTX

VS

GeForce 8400 GS Rev. 3

Graphics Card

Unknown

Release Date

Jul 2010

Radeon R600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

828 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

512bit

Memory Bus

64bit

106.0GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

1

4

Compute Units

-

320

Shading Units

8

16

TMUs

4

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

256 KB

L2 Cache

32 KB

Theoretical Performance

11.89 GPixel/s

Pixel Rate

2.080 GPixel/s

11.89 GTexel/s

Texture Rate

2.080 GTexel/s

-

FP16 (half)

-

475.5 GFLOPS

FP32 (float)

19.68 GFLOPS

-

FP64 (double)

-

Graphics Processor

R600

GPU Name

GT218

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

8400GS-225-B1

TeraScale

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.72 billion

Transistors

0.26 billion

420 mm²

Die Size

57 mm²

Board Design

240W

TDP

25W

550 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Features

10.0 (10_0)

DirectX

11.1 (10_1)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.2

4.0

Shader Model

4.1

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