AMD Radeon RX 7950 XTX vs AMD Radeon HD 6990
GPU Specs Compare
Graphics Card
Release Date
Unknown
Mar 2011
Generation
Navi III
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
2200 MHz
-
Boost Clock
3300 MHz
-
Memory Clock
2500 MHz
1250 MHz
Memory
Memory Size
24GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
384bit
256bit
Bandwidth
960.0GB/s
160.0GB/s
Render Config
Compute Units
96
24
Shading Units
6144
1536
TMUs
384
96
ROPs
192
32
RT Cores
96
-
L1 Cache
256 KB per Array
8 KB (per CU)
L2 Cache
6 MB
512 KB
L3 Cache
96 MB
-
Theoretical Performance
Pixel Rate
633.6 GPixel/s
26.56 GPixel/s
Texture Rate
1267 GTexel/s
79.68 GTexel/s
FP16 (half)
162.2 TFLOPS
-
FP32 (float)
81.10 TFLOPS
2.550 TFLOPS
FP64 (double)
2.534 TFLOPS
637.4 GFLOPS
Graphics Processor
GPU Name
Navi 31
Antilles
GPU Variant
Navi 31 XTX+
Antilles XT(215-0807027)
Architecture
RDNA 3.0
TeraScale 3
Foundry
TSMC
TSMC
Process Size
5 nm
40 nm
Transistors
57.7 billion
2.64 billion
Die Size
529 mm²
389 mm²
Board Design
TDP
355W
375W
Suggested PSU
750 W
750 W
Outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
1x DVI4x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.2
1.2
Vulkan
1.3
N/A
Shader Model
6.7
5.0