Home GPU Comparison AMD Radeon HD 8990 OEM vs NVIDIA GeForce RTX 4080

AMD Radeon HD 8990 OEM vs NVIDIA GeForce RTX 4080

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 16GB VRAM GeForce RTX 4080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 's Advantages
Released 9 years and 5 months late
Boost Clock has increased by 150% (2505MHz vs 1000MHz)
More VRAM (16GB vs 3GB)
Larger VRAM bandwidth (716.8GB/s vs 288.0GB/s)
7680 additional rendering cores
Lower TDP (320W vs 375W)

Score

Benchmark

FP32 (float)
Radeon HD 8990 OEM
4.096 TFLOPS
GeForce RTX 4080 +1089%
48.74 TFLOPS
VS

Graphics Card

Apr 2013
Release Date
Sep 2022
Sea Islands
Generation
GeForce 40
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

950 MHz
Base Clock
2205 MHz
1000 MHz
Boost Clock
2505 MHz
1500 MHz
Memory Clock
1400 MHz

Memory

3GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6X
384bit
Memory Bus
256bit
288.0GB/s
Bandwidth
716.8GB/s

Render Config

-
SM Count
76
32
Compute Units
-
2048
Shading Units
9728
128
TMUs
304
32
ROPs
112
-
Tensor Cores
304
-
RT Cores
76
16 KB (per CU)
L1 Cache
128 KB (per SM)
768 KB
L2 Cache
64 MB

Theoretical Performance

32.00 GPixel/s
Pixel Rate
280.6 GPixel/s
128.0 GTexel/s
Texture Rate
761.5 GTexel/s
-
FP16 (half)
48.74 TFLOPS
4.096 TFLOPS
FP32 (float)
48.74 TFLOPS
1024 GFLOPS
FP64 (double)
761.5 GFLOPS

Graphics Processor

Malta
GPU Name
AD103
Malta XT (215-0849026)
GPU Variant
AD103-300-A1
GCN 1.0
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
4.313 billion
Transistors
45.9 billion
365 mm²
Die Size
379 mm²

Board Design

375W
TDP
320W
750 W
Suggested PSU
700 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
2x 8-pin
Power Connectors
1x 16-pin

Graphics Features

12 (11_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.2
OpenCL
3.0
1.2
Vulkan
1.3
-
CUDA
8.9
5.1
Shader Model
6.7

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