AMD Radeon HD 6990M vs NVIDIA GeForce RTX 5080
GPU · Specs Compare
Graphics Card
Release Date
Jul 2011
Jan 2025
Generation
Vancouver
GeForce 50
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 5.0 x16
Clock Speeds
Memory Clock
900 MHz
1875 MHz
Base Clock
—
2295 MHz
Boost Clock
—
2617 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR7
Memory Bus
256bit
256bit
Bandwidth
115.2GB/s
960.0GB/s
Render Config
Compute Units
14
—
Shading Units
1120
10752
TMUs
56
336
ROPs
32
112
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
64 MB
SM Count
—
84
Tensor Cores
—
336
RT Cores
—
84
Theoretical Performance
Pixel Rate
22.88 GPixel/s
293.1 GPixel/s
Texture Rate
40.04 GTexel/s
879.3 GTexel/s
FP32 (float)
1.602 TFLOPS
56.28 TFLOPS
FP16 (half)
—
56.28 TFLOPS
FP64 (double)
—
879.3 GFLOPS
Graphics Processor
GPU Name
Blackcomb
GB203
GPU Variant
Blackcomb XTX(216-0811030)
GB203-400-A1
Architecture
TeraScale 2
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
5 nm
Transistors
1.7 billion
45.6 billion
Die Size
212 mm²
378 mm²
Board Design
TDP
100W
360W
Outputs
No outputs
1x HDMI 2.1b3x DisplayPort 2.1b
Power Connectors
None
1x 16-pin
Suggested PSU
—
750 W
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.4
Shader Model
5.0
6.8
CUDA
—
12.0
Benchmark
3DMark Time Spy
—
33,116
3DMark Time Spy Extreme
—
16,627
3DMark Speed Way
—
9,296
▲ Specs Compare
Data sourced from official specifications and benchmark tests.