GPU Comparison
GEFORCE
NVIDIA GB10
CORE STATE
GB20B
VRAM
128 GB
CLOCK SPEED
2418 MHz
TDP
140 W
BUS WIDTH
256 bit
ARCHITECTURE
Blackwell 2.0
PROCESS
5 nm
LAUNCH DATE
2025
VS
GEFORCE
Tesla K20m
CORE STATE
GK110
VRAM
5 GB
CLOCK SPEED
—
TDP
225 W
BUS WIDTH
320 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
GB10
Tesla K20m
Core Specs
Shading Units
6,144
2,496
-59.4%
Shaders
6,144
2,496
-59.4%
TMUs
384
208
-45.8%
ROPs
48
40
-16.7%
SM Count
48
—
Clocks
Base Clock
1665 MHz
—
Boost Clock
2418 MHz
—
GPU Clock
—
706 MHz
Memory Clock
1067 MHz
8.5 Gbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
128 GB
5 GB
VRAM (MB)
131,072
5,120
-96.1%
Memory Type
LPDDR5X
GDDR5
Memory Bus
256 bit
320 bit
Bandwidth
273.2 GB/s
208.0 GB/s
Cache
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
50 MB
1280 KB
Performance
Pixel Rate
116.1 GPixel/s
36.71 GPixel/s
Texture Rate
928.5 GTexel/s
146.8 GTexel/s
FP32 (TFLOPS)
29.71 TFLOPS
3.524 TFLOPS
FP64 (TFLOPS)
464.3 GFLOPS (1:64)
1,174.8 GFLOPS (1:3)
FP16 (TFLOPS)
29.71 TFLOPS (1:1)
—
AI/RT
RT Cores
48
—
Tensor Cores
384
—
Power
TDP
140 W
225 W
TDP (W)
140
225
+60.7%
Suggested PSU
300 W
550 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
Blackwell 2.0
Kepler
GPU Name
GB20B
GK110
Generation
Server Blackwell
(Bxx)
Tesla Kepler
(Kxx)
Process Size
5 nm
28 nm
Transistors
—
7,080 million
Die Size
—
561 mm²
Foundry
TSMC
TSMC
Density
—
12.6M / mm²
API Support
DirectX
—
12 (11_0)
OpenGL
—
4.6
Vulkan
—
1.2.175
OpenCL
3.0
3.0
CUDA
12.1
3.5
Shader Model
—
6.5 (5.1)
Physical
Slot Width
IGP
Dual-slot
Length
150 mm
5.9 inches
267 mm
10.5 inches
Height
51 mm
2 inches
—
Outputs
1x HDMI
No outputs
Bus Interface
PCIe 5.0 x16
PCIe 2.0 x16
Other
Launch Price
3,999 USD
3,199 USD
Production
Active
End-of-life
Predecessor
Server Hopper
Tesla Fermi
Successor
Server Rubin
Tesla Maxwell