GPU Comparison
RADEON
AMD Radeon RX 6800
CORE STATE
Navi 21
VRAM
16 GB
CLOCK SPEED
2105 MHz
TDP
250 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2020
VS
GEFORCE
GeForce GT 640
CORE STATE
GK107
VRAM
2 GB
CLOCK SPEED
—
TDP
65 W
BUS WIDTH
128 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6800
GT 640
Core Specs
Shading Units
3,840
384
-90.0%
Shaders
3,840
384
-90.0%
TMUs
240
32
-86.7%
ROPs
96
16
-83.3%
Compute Units
60
—
Clocks
Base Clock
1700 MHz
—
Boost Clock
2105 MHz
—
GPU Clock
—
902 MHz
Game Clock
1815 MHz
—
Memory Clock
2000 MHz
16 Gbps effective
891 MHz
1782 Mbps effective
Memory
Memory Size
16 GB
2 GB
VRAM (MB)
16,384
2,048
-87.5%
Memory Type
GDDR6
DDR3
Memory Bus
256 bit
128 bit
Bandwidth
512.0 GB/s
28.51 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per SMX)
L2 Cache
4 MB
256 KB
L3 Cache
128 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
202.1 GPixel/s
7.216 GPixel/s
Texture Rate
505.2 GTexel/s
28.86 GTexel/s
FP32 (TFLOPS)
16.17 TFLOPS
692.7 GFLOPS
FP64 (TFLOPS)
1,010.4 GFLOPS (1:16)
28.86 GFLOPS (1:24)
FP16 (TFLOPS)
32.33 TFLOPS (2:1)
—
AI/RT
RT Cores
60
—
Power
TDP
250 W
65 W
TDP (W)
250
65
-74.0%
Suggested PSU
600 W
250 W
Power Connectors
2x 8-pin
None
Architecture
Architecture
RDNA 2.0
Kepler
GPU Name
Navi 21
GK107
Generation
Navi II
(RX 6000)
GeForce 600
Process Size
7 nm
28 nm
Transistors
26,800 million
1,270 million
Die Size
520 mm²
118 mm²
Foundry
TSMC
TSMC
Density
51.5M / mm²
10.8M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.8
6.5 (5.1)
Physical
Slot Width
Dual-slot
Single-slot
Length
267 mm
10.5 inches
145 mm
5.7 inches
Height
120 mm
4.7 inches
—
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Other
Launch Price
579 USD
99 USD
Production
End-of-life
End-of-life
Predecessor
Navi
GeForce 500
Successor
Navi III
GeForce 700