GeForce RTX 4090 Ti vs Radeon HD 8990 OEM
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 Ti and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 Ti Advantages
Boost Clock has increased by 156% (2565MHz vs 1000MHz)
More VRAM (24GB vs 3GB)
Larger VRAM bandwidth (1152GB/s vs 288.0GB/s)
16128 additional rendering cores
Radeon HD 8990 OEM Advantages
Lower TDP (375W vs 600W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090 Ti
+2176%
93240
Radeon HD 8990 OEM
4096
Graphics Card
Unknown
Release Date
Apr 2013
GeForce 40
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
2325 MHz
Base Clock
950 MHz
2565 MHz
Boost Clock
1000 MHz
1500 MHz
Memory Clock
1500 MHz
Memory
24GB
Memory Size
3GB
GDDR6X
Memory Type
GDDR5
384bit
Memory Bus
384bit
1152GB/s
Bandwidth
288.0GB/s
Render Config
-
Compute Units
32
142
SM Count
-
18176
Shading Units
2048
568
TMUs
128
192
ROPs
32
568
Tensor Cores
-
142
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
96 MB
L2 Cache
768 KB
Theoretical Performance
492.5 GPixel/s
Pixel Rate
32.00 GPixel/s
1457 GTexel/s
Texture Rate
128.0 GTexel/s
93.24 TFLOPS
FP16 (half)
-
93.24 TFLOPS
FP32 (float)
4.096 TFLOPS
1457 GFLOPS
FP64 (double)
1024 GFLOPS
Board Design
600W
TDP
375W
1000 W
Suggested PSU
750 W
1x HDMI 2.1
3x DisplayPort 1.4a
3x DisplayPort 1.4a
Outputs
1x DVI
4x mini-DisplayPort 1.2
4x mini-DisplayPort 1.2
2x 16-pin
Power Connectors
2x 8-pin
Graphics Processor
AD102
GPU Name
Malta
AD102-400-A1
GPU Variant
Malta XT
(215-0849026)
(215-0849026)
Ada Lovelace
Architecture
GCN 1.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
76.3 billion
Transistors
4.313 billion
609 mm²
Die Size
365 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.3
Vulkan
1.2
8.9
CUDA
-
6.7
Shader Model
5.1
