AMD Radeon HD 6990 vs AMD Radeon Graphics 448SP
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Jan 2021
Generation
Northern Islands
Lucienne
Type
Desktop
Integrated
Bus Interface
PCIe 2.0 x16
IGP
Clock Speeds
Memory Clock
1250 MHz
System Shared
Base Clock
-
300 MHz
Boost Clock
-
1800 MHz
Memory
Memory Size
2GB
System Shared
Memory Type
GDDR5
System Shared
Memory Bus
256bit
System Shared
Bandwidth
160.0GB/s
System Dependent
Render Config
Compute Units
24
7
Shading Units
1536
448
TMUs
96
32
ROPs
32
8
L1 Cache
8 KB (per CU)
-
L2 Cache
512 KB
-
Theoretical Performance
Pixel Rate
26.56 GPixel/s
14.40 GPixel/s
Texture Rate
79.68 GTexel/s
57.60 GTexel/s
FP32 (float)
2.550 TFLOPS
1.613 TFLOPS
FP64 (double)
637.4 GFLOPS
100.8 GFLOPS
FP16 (half)
-
3.226 TFLOPS
Graphics Processor
GPU Name
Antilles
Lucienne
GPU Variant
Antilles XT(215-0807027)
-
Architecture
TeraScale 3
GCN 5.1
Foundry
TSMC
TSMC
Process Size
40 nm
7 nm
Transistors
2.64 billion
9.8 billion
Die Size
389 mm²
156 mm²
Board Design
TDP
375W
25W
Suggested PSU
750 W
-
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4