AMD Radeon RX 7900 GRE vs ATI Radeon HD 4870

VS

AMD Radeon RX 7900 GRE

ATI Radeon HD 4870

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7900 GRE and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 GRE 's Advantages

Released 15 years and 1 months late

Boost Clock2245MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (576.0GB/s vs 115.2GB/s)

4320 additional rendering cores

ATI Radeon HD 4870 's Advantages

Lower TDP (150W vs 260W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 GRE +3731%

45.98 TFLOPS

Radeon HD 4870

1.2 TFLOPS

Radeon RX 7900 GRE

VS

Radeon HD 4870

Graphics Card

Jul 2023

Release Date

Jun 2008

Navi III

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1287 MHz

Base Clock

-

2245 MHz

Boost Clock

-

2250 MHz

Memory Clock

900 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

115.2GB/s

Render Config

80

Compute Units

10

-

5120

Shading Units

800

320

TMUs

40

160

ROPs

16

-

80

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

64 MB

L3 Cache

-

Theoretical Performance

359.2 GPixel/s

Pixel Rate

12.00 GPixel/s

718.4 GTexel/s

Texture Rate

30.00 GTexel/s

91.96 TFLOPS

FP16 (half)

-

45.98 TFLOPS

FP32 (float)

1200 GFLOPS

1437 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

260W

TDP

150W

600 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 31

GPU Name

RV770

Navi 31 XL (215-145000206)

GPU Variant

RV770 XT (215-0669049)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

57.7 billion

Transistors

0.956 billion

529 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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