AMD Radeon RX 7900 GRE vs ATI Radeon HD 4850 X2

VS

AMD Radeon RX 7900 GRE

ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7900 GRE and 512MB VRAM Radeon HD 4850 X2 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 14 years and 8 months late

Boost Clock2245MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (576.0GB/s vs 63.68GB/s)

4320 additional rendering cores

ATI Radeon HD 4850 X2 's Advantages

Lower TDP (250W vs 260W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 GRE +4498%

45.98 TFLOPS

Radeon HD 4850 X2

1 TFLOPS

Radeon RX 7900 GRE

VS

Radeon HD 4850 X2

Graphics Card

Jul 2023

Release Date

Nov 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

995 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

63.68GB/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

10.00 GPixel/s

718.4 GTexel/s

Texture Rate

25.00 GTexel/s

91.96 TFLOPS

FP16 (half)

-

45.98 TFLOPS

FP32 (float)

1000 GFLOPS

1437 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

260W

TDP

250W

600 W

Suggested PSU

600 W

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

Outputs

4x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 31

GPU Name

R700

Navi 31 XL (215-145000206)

GPU Variant

R700 PRO (215-0669065)

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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