AMD Radeon RX 7700 vs AMD Radeon HD 7990
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Apr 2013
Generation
Navi III
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1900 MHz
950 MHz
Boost Clock
2600 MHz
1000 MHz
Memory Clock
2430 MHz
1500 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
384bit
Bandwidth
622.1GB/s
288.0GB/s
Render Config
Compute Units
40
32
Shading Units
2560
2048
TMUs
160
128
ROPs
96
32
RT Cores
40
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
768 KB
L3 Cache
64 MB
-
Theoretical Performance
Pixel Rate
249.6 GPixel/s
32.00 GPixel/s
Texture Rate
416.0 GTexel/s
128.0 GTexel/s
FP16 (half)
53.25 TFLOPS
-
FP32 (float)
26.62 TFLOPS
4.096 TFLOPS
FP64 (double)
832.0 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Navi 32
Malta
GPU Variant
Navi 32
Malta XT(215-0849026)
Architecture
RDNA 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
28.1 billion
4.313 billion
Die Size
346 mm²
365 mm²
Board Design
TDP
200W
375W
Suggested PSU
550 W
750 W
Outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
1x DVI4x mini-DisplayPort 1.2
Power Connectors
1x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.3
1.2
Shader Model
6.8
5.1