AMD Radeon RX 7950 XTX vs ATI Radeon HD 3870

VS

AMD Radeon RX 7950 XTX

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7950 XTX and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7950 XTX 's Advantages

Boost Clock3300MHz

More VRAM (24GB vs 512GB)

Larger VRAM bandwidth (960.0GB/s vs 72.06GB/s)

5824 additional rendering cores

ATI Radeon HD 3870 's Advantages

Lower TDP (106W vs 355W)

Score

Benchmark

FP32 (float)

Radeon RX 7950 XTX +16217%

81.1 TFLOPS

Radeon HD 3870

0.497 TFLOPS

Radeon RX 7950 XTX

VS

Radeon HD 3870

Graphics Card

Unknown

Release Date

Nov 2007

Navi III

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2200 MHz

Base Clock

-

3300 MHz

Boost Clock

-

2500 MHz

Memory Clock

1126 MHz

Memory

24GB

Memory Size

512MB

GDDR6

Memory Type

GDDR4

384bit

Memory Bus

256bit

960.0GB/s

Bandwidth

72.06GB/s

Render Config

96

Compute Units

4

-

6144

Shading Units

320

384

TMUs

16

192

ROPs

16

-

96

RT Cores

-

256 KB per Array

L1 Cache

-

6 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

633.6 GPixel/s

Pixel Rate

12.43 GPixel/s

1267 GTexel/s

Texture Rate

12.43 GTexel/s

162.2 TFLOPS

FP16 (half)

-

81.10 TFLOPS

FP32 (float)

497.3 GFLOPS

2.534 TFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

355W

TDP

106W

750 W

Suggested PSU

300 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 31

GPU Name

RV670

Navi 31 XTX+

GPU Variant

RV670 XT (215-0708005)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

57.7 billion

Transistors

0.666 billion

529 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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