NVIDIA GeForce GTX 645 OEM vs ATI Radeon HD 2950 XTX

VS

NVIDIA GeForce GTX 645 OEM ATI Radeon HD 2950 XTX

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 512MB VRAM Radeon HD 2950 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

More VRAM (1024GB vs 512GB)

256 additional rendering cores

Lower TDP (65W vs 110W)

ATI Radeon HD 2950 XTX 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 64.00GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +90%

0.949 TFLOPS

Radeon HD 2950 XTX

0.497 TFLOPS

GeForce GTX 645 OEM

VS

Radeon HD 2950 XTX

Graphics Card

Apr 2013

Release Date

Unknown

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

1126 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

72.06GB/s

Render Config

-

SM Count

-

Compute Units

4

576

Shading Units

320

48

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

9.888 GPixel/s

Pixel Rate

12.43 GPixel/s

39.55 GTexel/s

Texture Rate

12.43 GTexel/s

-

FP16 (half)

-

949.2 GFLOPS

FP32 (float)

497.3 GFLOPS

39.55 GFLOPS

FP64 (double)

99.46 GFLOPS

Graphics Processor

GK106

GPU Name

RV670

GK106-200-A1

GPU Variant

RV670 XTX (215-0708004)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.54 billion

Transistors

0.666 billion

221 mm²

Die Size

192 mm²

Board Design

65W

TDP

110W

250 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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