GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
GeForce GTX 285
CORE STATE
GT200B
VRAM
1024 MB
CLOCK SPEED
—
TDP
204 W
BUS WIDTH
512 bit
ARCHITECTURE
Tesla 2.0
PROCESS
55 nm
LAUNCH DATE
2008
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GTX 285
Core Specs
Shading Units
640
240
-62.5%
Shaders
640
240
-62.5%
TMUs
40
80
+100.0%
ROPs
16
32
+100.0%
Compute Units
10
—
SM Count
—
30
Clocks
GPU Clock
1295 MHz
648 MHz
Shader Clock
—
1476 MHz
Memory Clock
1500 MHz
6 Gbps effective
1242 MHz
2.5 Gbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
GDDR3
Memory Bus
128 bit
512 bit
Bandwidth
96.00 GB/s
159.0 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
20.72 GPixel/s
20.74 GPixel/s
Texture Rate
51.80 GTexel/s
51.84 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
708.5 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
88.56 GFLOPS (1:8)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
204 W
TDP (W)
50
204
+308.0%
Suggested PSU
250 W
550 W
Power Connectors
None
2x 6-pin
Architecture
Architecture
GCN 4.0
Tesla 2.0
GPU Name
Polaris 23
GT200B
Generation
Polaris
(RX 600)
GeForce 200
Process Size
14 nm
55 nm
Transistors
2,200 million
1,400 million
Die Size
103 mm²
470 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
3.0M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_0)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
1.3
Shader Model
6.7
4.0
Physical
Slot Width
Single-slot
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
2x DVI1x S-Video
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Launch Price
—
359 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 9
Successor
Vega
GeForce 400