ATI Radeon HD 4890 vs NVIDIA GeForce GT 620

VS

ATI Radeon HD 4890 NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4890 's Advantages

Larger VRAM bandwidth (124.8GB/s vs 14.40GB/s)

704 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Released 3 years and 1 months late

Lower TDP (49W vs 190W)

Score

Benchmark

FP32 (float)

Radeon HD 4890 +405%

1.36 TFLOPS

GeForce GT 620

0.269 TFLOPS

Radeon HD 4890

VS

GeForce GT 620

Graphics Card

Apr 2009

Release Date

May 2012

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

975 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

124.8GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

2

10

Compute Units

-

800

Shading Units

96

40

TMUs

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

Theoretical Performance

13.60 GPixel/s

Pixel Rate

2.800 GPixel/s

34.00 GTexel/s

Texture Rate

11.20 GTexel/s

-

FP16 (half)

-

1360 GFLOPS

FP32 (float)

268.8 GFLOPS

272.0 GFLOPS

FP64 (double)

22.40 GFLOPS

Graphics Processor

RV790

GPU Name

GF108

RV790 XT (215-0758016)

GPU Variant

GF108-100-KB-A1

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.959 billion

Transistors

0.585 billion

282 mm²

Die Size

116 mm²

Board Design

190W

TDP

49W

450 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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