NVIDIA GeForce GTX 460 X2 vs ATI Radeon HD 2900 XTX

VS

NVIDIA GeForce GTX 460 X2

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 460 X2 and 512MB VRAM Radeon HD 2900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 460 X2 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 106.0GB/s)

16 additional rendering cores

Lower TDP (160W vs 240W)

Score

Benchmark

FP32 (float)

GeForce GTX 460 X2 +97%

0.942 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

GeForce GTX 460 X2

VS

Radeon HD 2900 XTX

Graphics Card

Mar 2011

Release Date

Unknown

GeForce 400

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

900 MHz

Memory Clock

828 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

512bit

115.2GB/s

Bandwidth

106.0GB/s

Render Config

-

Compute Units

4

7

SM Count

-

336

Shading Units

320

56

TMUs

16

32

ROPs

16

-

64 KB (per SM)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

9.814 GPixel/s

Pixel Rate

11.89 GPixel/s

39.26 GTexel/s

Texture Rate

11.89 GTexel/s

-

941.5 GFLOPS

FP32 (float)

475.5 GFLOPS

78.46 GFLOPS

FP64 (double)

-

Board Design

160W

TDP

240W

450 W

Suggested PSU

550 W

3x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GF104

GPU Name

R600

GF104-300-KB-A1

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.95 billion

Transistors

0.72 billion

332 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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