Radeon RX 7990 XTX vs Radeon RX 6700 XT
We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 XTX and 12GB VRAM Radeon RX 6700 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 7990 XTX Advantages
Boost Clock has increased by 39% (3599MHz vs 2581MHz)
More VRAM (24GB vs 12GB)
Larger VRAM bandwidth (1152GB/s vs 384.0GB/s)
3584 additional rendering cores
Radeon RX 6700 XT Advantages
Lower TDP (230W vs 405W)
Score
Benchmark
FP32 (float)
Radeon RX 7990 XTX
+569%
88450
Radeon RX 6700 XT
13210
Graphics Card
Unknown
Release Date
Mar 2021
Navi III
Generation
Navi II
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
2500 MHz
Base Clock
2321 MHz
3599 MHz
Boost Clock
2581 MHz
3000 MHz
Memory Clock
2000 MHz
Memory
24GB
Memory Size
12GB
GDDR6
Memory Type
GDDR6
384bit
Memory Bus
192bit
1152GB/s
Bandwidth
384.0GB/s
Render Config
96
Compute Units
40
6144
Shading Units
2560
384
TMUs
160
192
ROPs
64
96
RT Cores
40
256 KB per Array
L1 Cache
128 KB per Array
6 MB
L2 Cache
3 MB
192 MB
L3 Cache
96 MB
Theoretical Performance
691.0 GPixel/s
Pixel Rate
165.2 GPixel/s
1382 GTexel/s
Texture Rate
413.0 GTexel/s
176.9 TFLOPS
FP16 (half)
26.43 TFLOPS
88.45 TFLOPS
FP32 (float)
13.21 TFLOPS
2.764 TFLOPS
FP64 (double)
825.9 GFLOPS
Board Design
405W
TDP
230W
800 W
Suggested PSU
550 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
2x DisplayPort 2.1
1x USB Type-C
Outputs
1x HDMI 2.1
3x DisplayPort 1.4a
3x DisplayPort 1.4a
3x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
Navi 31
GPU Name
Navi 22
Navi 31 XTX+
GPU Variant
Navi 22 XT
(215-127000006)
(215-127000006)
RDNA 3.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
7 nm
57.7 billion
Transistors
17.2 billion
529 mm²
Die Size
335 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.2
OpenCL
2.1
1.3
Vulkan
1.3
6.7
Shader Model
6.5
