AMD Radeon RX 7990 XTX vs NVIDIA CMP 40HX
We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 XTX and 8GB VRAM CMP 40HX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7990 XTX 's Advantages
Boost Clock has increased by 118% (3599MHz vs 1650MHz)
More VRAM (24GB vs 8GB)
Larger VRAM bandwidth (1152GB/s vs 448.0GB/s)
3840 additional rendering cores
NVIDIA CMP 40HX 's Advantages
Lower TDP (185W vs 405W)
Score
Benchmark
FP32 (float)
Radeon RX 7990 XTX
+1063%
88.45 TFLOPS
CMP 40HX
7.603 TFLOPS
Graphics Card
Unknown
Release Date
Feb 2021
Navi III
Generation
Mining GPUs
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 1.0 x4
Clock Speeds
2500 MHz
Base Clock
1470 MHz
3599 MHz
Boost Clock
1650 MHz
3000 MHz
Memory Clock
1750 MHz
Memory
24GB
Memory Size
8GB
GDDR6
Memory Type
GDDR6
384bit
Memory Bus
256bit
1152GB/s
Bandwidth
448.0GB/s
Render Config
96
Compute Units
-
-
SM Count
36
6144
Shading Units
2304
384
TMUs
144
192
ROPs
64
-
Tensor Cores
288
96
RT Cores
36
256 KB per Array
L1 Cache
64 KB (per SM)
6 MB
L2 Cache
4 MB
192 MB
L3 Cache
-
Theoretical Performance
691.0 GPixel/s
Pixel Rate
105.6 GPixel/s
1382 GTexel/s
Texture Rate
237.6 GTexel/s
176.9 TFLOPS
FP16 (half)
15.21 TFLOPS
88.45 TFLOPS
FP32 (float)
7.603 TFLOPS
2.764 TFLOPS
FP64 (double)
237.6 GFLOPS
Board Design
405W
TDP
185W
800 W
Suggested PSU
450 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
Outputs
No outputs
3x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Navi 31
GPU Name
TU106
Navi 31 XTX+
GPU Variant
TU106-100-A1
RDNA 3.0
Architecture
Turing
TSMC
Foundry
TSMC
5 nm
Process Size
12 nm
57.7 billion
Transistors
10.8 billion
529 mm²
Die Size
445 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.2
OpenCL
3.0
1.3
Vulkan
1.3
-
CUDA
7.5
6.7
Shader Model
6.8
